Determine whether the given number is approximate or exact.The cost of gasoline is $0.979 per gallon.
A. Exact
B. Approximate
Answer: A
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Solve the problem.A company begins a radio advertising campaign in Chicago to market a new soft drink. The percentage of the target market that buys a soft drink is estimated by the function 
where t is the number of days of the campaign. After how long will 
of the target market have bought the soft drink?
A. 54 days B. 55 days C. 3 days D. 80 days
Use the product, quotient, and power rules of logarithms to rewrite the expression as a single logarithm. Assume that all variables represent positive real numbers.3 logm y - 5 logm p2
A. logm 
B. logm 
C. logm 
D. logm 
The polar coordinates of a point are given. Find the rectangular coordinates of the point.(-5, -180°)
A. (0, -5) B. (0, 5) C. (5, 0) D. (-5, 0)
Solve for the given letter.w = 
for y
A. y = 
B. y = 
C. y = 
D. y = 