A measure of how much solute is in a solution is its _____.

Petroleum refineries can be found throughout the United States. What does it mean to refine petroleum, and why must this process be performed?

How many data values are between 7 and 9?

$$\begin{array}{|c|c|c|c|c|} \hline 9.6 & 5.5 & 8.4 & 9.1 & 6.7\\ \hline 7.2 & 11.5 & 9.2 & 5.2 & 7.6\\ \hline 11.1 & 6.1 & 7.2 & 14.8 & 12.5\\ \hline 8.4 & 10.5 & 10.2 & 8.4 & 13.5\\ \hline \end{array}$$

Match the organelle with its description

$$\begin{matrix} \text{Organelle} & \text{Description}\\ \text{Chloroplasts} & \text{A. Convert energy from sunlight into chemical energy that is stored in food}\\ \text{ } & \text{B. Stack of membranes that modifies, sorts, and packages proteins and other materials for storage or release}\\ \text{ } & \text{C. Convert chemical energy stored in food into a form that can be easily used by the cell}\\ \text{ } & \text{D. An internal membrane system where lipid components of cell membranes are made}\\ \text{ } & \text{E. Saclike structures that store materials}\\ \text{ } & \text{F. Small particles of RNA and protein on which proteins are assembled using instructions from DNA}\\ \text{ } & \text{G. Filled with enzymes used to break down carbohydrates into smaller molecules}\\ \end{matrix}$$

Read the following description of London by Simon Worrall and then answer the question. "The whole world lives in London. Walk down Oxford Street and you will see Indians and Colombians, Bangladeshis and Ethiopians, Pakistanis and Russians, Melanesians and Malaysians. Fifty nationalities with communities of more than 5,000 make their home in the city, and on any given day 300 languages are spoken. It is estimated that by 2010 the population will be almost 30 percent ethnic minorities, the majority born in the U.K. [United Kingdom]." According to the author, in 2010 the population of London will a. be made up of mostly immigrants. b. have very few ethnic minorities. c. be decreasing as immigration slows. d. be almost 30 percent ethnic minorities.

Consider the following scenario: Barbara decides to take a walk. She leaves home, walks 2 blocks in 5 minutes at a constant speed, and realizes that she forgot to lock the door. So Barbara runs home in 1 minute. While at her doorstep, it takes her 1 minute to find her keys and lock the door. Barbara walks 5 blocks in 15 minutes and then decides to jog home. It takes her 7 minutes to get home. Draw a graph of Barbara’s distance from home (in blocks) as a function of time.

Read the passage, and then answer the questions that follow. Kim and Rich are both seniors in high school and have been dating since they were freshmen. They only have one more week of school until graduation. Three other couples in their class are planning to skip school the last day of class to go have fun in a nearby large city. Kim and Rich know that it would be a fun day, but they are worried that if they are caught skipping, they may not be allowed to participate in their class’s graduation $\underline{\text{commencement}}.$ They also know that their parents would be angry with them, and this would make their summer before leaving for college a difficult one at home. In this passage, Kim and Rich are I. a couple just starting to date. J. a high school couple in a dating relationship. K. just friends who enjoy each other’s company. L. about to break up.

Fill in each blank so that the resulting statement is true. The degree of the polynomial function $f(x)=-2 x^{3}(x-1)(x+5)$ is ____. The leading coefficient is ____.

On managing Southern Africa's resources to write a paragraph summarizing the habitat destruction that has been taking place.

The atomic number of an atom is determined by the number of a. protons. b. electrons. c. neutrons. d. isotopes.

Which foods can be used as dairy substitutes?

Graph each equation by hand by plotting points. Verify your results using a graphing utility. $5x + 2y = 10$

Use the wind power key to locate where you would plan five wind power projects that are larger than 50 MW.

The store manager put $20.00 worth of quarters in the change drawer. How many quarters are in$20.00?