If expense as a function of quantity equation is e(q) = -350q + 2300 and
the demand equation is q = -700p + 1200, use composition of functions
to find an expense as a function of price equation.

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.