Analyze the situation and explain how you would make a decision.Your current cell phone company charges $30 per month for unlimited minutes. Another company charges $20 per month for the first 500 minutes plus 5¢ a minute for any additional minutes. Should you keep your current service or switch to the other company?
What will be an ideal response?
Answers may vary. One possibility: The relative cost of the two options depends primarily on how many minutes per month you use. The new company's plan would cost ? $30 for up to 700 minutes a month, since 
Therefore, if you expect to use less than 700 minutes a month, you would tend to profit from switching companies. However, there are other factors to consider:
Does one company have more dependable cellular service? Better sound quality? Better customer service? You should also look for hidden costs. For example, if you switch companies, you may need to buy a new cell phone.
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Solve the problem.Find the extreme values of 
subject to 
and 
A. Maximum: none; minimum: 
at 
B. Maximum: none; minimum: 
at 
C. Maximum: none; minimum: 
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D. Maximum: none; minimum: 
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Find the area of the shaded region of the figure. Use 3.14 for ? as necessary.
A. 40 in.2 B. 16 in.2 C. 48 in.2 D. 24 in.2
The following circle graph displays Chris and Mary Smith's monthly $2900 family budget. Use the circle graph to answer the question. 
How much money is allotted each month for charity?
A. $550 B. $200 C. $300 D. $400
Complete the identity.
+ 
= ?
A. 1 + cot ? B. sin ? tan ? C. sec ? csc ? D. -2 tan2 ?