Recent research has shown that the use of earbud-style headphones packaged with MP3 players can cause permanent hearing loss. The intensity of the sound from the speakers of a certain MP3 player (without earbuds) is measured at $3.1 \times 10^{-5}\ \mathrm{W} / \mathrm{m}^{2}.$ Find the decibel level.

The research department of a company that manufactures children's fruit drinks is experimenting with a news flavor. A $17.5 \%$ fructose solution is needed, but only $10 \%$ and $20 \%$ solutions are available. How many gallons of the $10 \%$ fructose solution should be mixed with the $20 \%$ fructose solution to obtain 20 gallons of a $17.5 \%$ fructose solution?

Making and Using Tables Research at least ten hurricanes that have occurred throughout the world since 1980. Based on the Saffir-Simpson scale, make a data table showing wind speed, air pressure in the center, and property damage associated with each hurricane. For more help, refer to the Skill Handbook.

Refer to Research In Motion’s balance sheet in Appendix A. What property, plant and equipment assets does RIM show on its balance sheet? What is the book value of its total net property, plant and equipment assets at February 27, 2010?

Keegan and Jeff did some research and found that there are approximately 7,492,000,000,000,000,000 grains of sand on Earth. Jeff says that it is about $7 \times 10^{15}$ grains of sand. Keegan says that this is about $7 \times 10^{18}$ grains of sand. Whose estimate, Jeff's or Keegan's, is more logical? Explain.

During a holiday party at work, you pay $\$ 2$ to buy a raffle ticket for a 160-gigabyte iPod. You win the drawing. Based on a little research online, you discover that the going rate for a hardly used 160-gigabyte iPod is $\$ 200$.

b. What is the opportunity cost of choosing to keep the iPod?

Pew Research, in November 2011, polled a random sample of 799 U.S. teens about Internet use. 49% of those teens reported that they had misrepresented their age online to gain access to websites and online services. If we only need to be 90% confident, will the margin of error be larger or smaller? Explain.

Which of the following is the underlying question of any psychological research statistics?

a. Is behavior determined by “nature” or “nurture”? b. Do people want to be “good” or “bad” in their general behaviors? c. Is there a singular commonality that underlies all behaviors? d. Are groups different from each other, and are two variables related to each other?

Mary Ainsworth's research on attachment suggest that a child is most likely to become "securely attached" when exposed to a. a terry cloth-wrapped "surrogate" mother. b. a caregiver with the right temperament. c. consistent, responsive caregivers. d. an imprinting experience shortly after birth. e. enriched motor development experiences.

Persuasive Writing Research newspapers and news magazines for recent articles about the minimum wage. Using what you have learned about price floors and the information in the articles, decide whether you favor or oppose raising the minimum wage. Write a 2-page paper outlining your views.

On the line provided, identify the following word groups by writing SF for sentence fragment, RO for run-on sentence, or S for sentence.

$\underline{\hspace{1cm}}$ The Internet has become a useful tool for my research, I find information for tests and papers as well as information for my personal interest and enjoyment.

The market research department of the Better Baby Buggy Co. predicts that the demand equation for its buggies is given by q=−0.5p+140, where q is the number of buggies it can sell in a month if the price is $p per buggy. At what price should it sell the buggies to get the largest revenue? What is the largest monthly revenue?

Classify the following sentence by writing on the line provided S for simple sentence, CD for compound sentence, CX for complex sentence, or CD-CX for compound-complex sentence.

Example S 1. I use the Dictionary of American Biography to research famous Americans.

_____Are you interested in geographical trivia?

With guidance from your teacher or parents, use the Internet to research a grain that is new to you. Find out about the appearance of the grain, the processing, the taste and texture, and how it is cooked and prepared. Use a word processing program to write a report on your information. Include all of the information you have gathered.