Use trigonometric identities to solve each equation in the interval [0, 2?] tan2 x = - 
sec x
A. 
B. 
C. 
D. 
Answer: C
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From the following credit card transactions, find the credit-card sales less refunds. Then find the amount of the charge at the statement date.Expressway Photo Developers pays a 2%.??SalesRefunds$15.89?$61.94?$18.07$36.31?$92.43?$18.06$24.13?$9.13?$16.93$20.66?$45.59
A. $359.14, $7.18 B. $306.08, $6.12 C. $243.02, $4.86 D. $253.02, $5.06
Solve the problem.The algebraic expression 
describes the duration of a storm, in hours, whose diameter is d miles. Use a calculator to determine the duration of a storm with a diameter of 15 miles. Round to the nearest hundredth.
A. 0.27 hr B. 4.07 hr C. 1.08 hr D. 58.09 hr
Use a graphing utility to find the equation of the line of best fit. Round to two decimal places, if necessary.
A. y = 0.32x + 2.57 B. y = 0.30x + 4.29 C. y = 0.30x + 2.57 D. y = 0.32x + 4.29
The table shows, for some particular year, a listing of several income levels and, for each level, the proportion of the population in the level and the probability that a person in that level bought a new car during the year. Given that one of the people who bought a new car during that year is randomly selected, find the probability that that person was in the indicated income category. Round your answer to the nearest hundredth. 
$50,000 and over
A. .24 B. .28 C. .22 D. .25