If a bacteria population starts with 160 bacteria and doubles every two hours, then the number of bacteria after t hours is n = f(t) = 160 · 2t/2. (a) find the inverse of this function. f −1(n) = explain its meaning.

Juanita wade's new car has an msrp of $28,902.11 including title and processing fees. the premier package which includes surround sound and dvd player costs three times the amount of the in-style package which includes leather seats and select wheels. the total cost of her new car was $34,290.08 which included the 6.5% sales tax. find the cost of the premier package to the nearest cent.