A painter needs to paint the bottom of a circular pool. The pool bottom has a radius of 30 feet. A store sells gallon-cans of paint. One gallon-can of paint covers 300 square feet. How many gallon-cans of paint must the painter buy to cover the entire bottom of the pool?

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.