A simple technique that biologists use to estimate the age of an African elephant is to measure the length of the elephant's footprint and then calculate its age using the equation

$$l=45-25.7 e^{-0.09 a}$$

where $l$ is the length of the footprint (in centimeters) and $a$ is the age (in years).

Use the equation to find the ages of the elephants with the help of footprint.

In each of the following sentences, the verb agrees with its subject. Next to each sentence number, write S if the subject and verb are singular. Write P if the subject and verb are plural.

Example: ${\color{#c34632}S}$ This book of poems is one of my favorite possessions.

Gwendolyn Brooks was an award-winning African American poet.

Jenny chose $360$ photos to be printed in a book of photos of her African safari. She estimates she used about $\frac{2}{5}$ of all the photos she took in her book. How many pictures did she take on her trip?
A. $144$
B. $540$
C. $720$
D. $900$

Add apostrophes where needed. Cross out apostrophes used incorrectly using the delete symbol. If the sentence is correct, write C in the blank. _____ Some lemur's, a group of about 23 species that live on the African island of Madagascar, hop quickly along the ground with their' arms' waving.

The jumping ability of the African desert locust was meaBID sured by placing the insect on a force plate, a platform that can accurately measure the force that acts on it. When the locust jumped straight up, its acceleration was measured to follow the curve in as we discussed earlier. What was the maximum force that this $0.50 \mathrm{~g}$ locust exerted on the force plate?

In the following sentences, underline the indirect objects once and the direct objects twice. Not every sentence contains an indirect object.

Example 1. She sent $\underline{\text{me}}$ a $\underline{\underline{\text{book}}}$ about woodworking.

Kareem taught his sister an African American folk song.

Which statement accurately describes southern society in the mid-1800s? A Very few white southerners owned slaves. B Few white southerners owned the land they farmed. C Many African Americans in the South owned land. D Most white southerners were small farmers.

In many traditional African cultures, the tribe pools resources to finance the education of a promising young person, who is then expected to assist the community. How is this practice reflected in this southern small town? What does Dee’s disregard of the current practice or its origin say about her?

Each person below has asked for humanitarian protection. Make a ruling as if you were a judge hearing this person's claim. Be sure to give your reasons.

Grace is from an African country where female circumcision is practiced. She says that she fears returning to her country because she will be forced to undergo this painful procedure.

Several years ago R. J. Reynolds announced plans to test market a menthol cigarette called Uptown specifically to African American consumers. According to the company, about 70 percent of African American smokers prefer menthol, more than twice the average rate. After market research showed that blacks tend to open cigarette packs from the bottom. the company decided to pack Uptowns with the filters facing down. Reynolds cancelled its plans after private health groups and government officials protested. Does a company have the right to exploit a subculture's special characteristics, especially to increase sales of a harmful product such as cigarettes? What about the argument that virtually every business that follows the marketing concept designs a product to meet the needs and tastes of a preselected segment?

Hypothesis tests are proposed. For each hypothesis test. a. Identify the variable. b. identify the two populations. c. identify the pairs. d. identify the paired-difference variable. e. determine the null and alternative hypotheses. f. classify the hypothesis test as two tailed, left tailed, or right tailed. The article “Accuracv of Self-Reported Height and Weight in a Community—Based Sample of Older African Americans and Whites” (Journal of Gerontology Series A: Biological Sciences and Medical Sciences) by G. Fillenbaum et al. explores the relationship between measured and self-reported height and weight. The authors sampled African American and White women and men older than 70 years of age. A hypothesis test is to be performed to decide whether, on average, self-reported weight is less than measured weight for the aforementioned age group.

Randy and Galen Welsch’s company Jibu provides African franchisees with training and resources to sell drinking water.

Required

1. How can Jibu use departmental (franchisee) income statements to assist in understanding and controlling operations?

2. Are departmental income statements always the best measure of a department’s performance? Explain.

let x represent the number of years after 1985 and let $y$ represent the percentage of Americans in one of the groups shown who used cigarettes.

a. Use the data points $(0,38)$ and $(20,27.3)$ to find the slope-intercept equation of the line that models the percentage of African Americans who used cigarettes, $y, x$ years after 1985. Round the value of the slope $m$ to two decimal places.

b. Use the data points $(0,40)$ and $(20,24.2)$ to find the slope-intercept equation of the line that models the percentage of Hispanics who used cigarettes, $y, x$ years after 1985.

c. Use the models from parts (a) and (b) to find the year during which cigarette use was the same for African Americans and Hispanics. What percentage of each group used cigarettes during that year?

Underline each independent clause in the following sentence. Example 1. $\underline{\text{Many athletes remember Alice Coachman}}$ because she helped break down barriers for both women and African Americans.

When she was a child, Alice Coachman sneaked away from her chores to play basketball.