Solve the problem.A pharmaceutical company introduces a new headache medication on the market. They advertise the product on television and find that the percentage P of people who buy the product after t weeks satisfies the function 
What percentage buy the product after 16 weeks? Round to the nearest tenth of a percent when necessary.
A. 21.3%
B. 14.2%
C. 17.8%
D. 19.6%
Answer: C
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Solve.Find the dimensions of a rectangular enclosure with perimeter 
and area 
A. 15 yd by 6 yd B. 13 yd by 7 yd C. 14 yd by 6 yd D. 16 yd by 7 yd
Write the answer to the problem as an algebraic expression.Elizabeth earned 9 dollars a day at her job. Assuming a 5-day work week, how much did she earn in d weeks?
A. 9d dollars B. 45 + d C. 9 + d dollars D. 45d dollars
Use a graphing calculator to solve the equation. Round your answer to two decimal places.ex = -x
A. {-1.05} B. {-0.57} C. {0.57} D. {1.05}
Use properties of logarithms to expand the logarithmic expression as much as possible. Where possible, evaluate logarithmic expressions without using a calculator.log5
A. 10 - log5x
B. 
C. - 2log5x
D. 2 - log5x