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. 80 days
C. 3 days
D. 55 days


Answer: A

Mathematics

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