Javier and Ellema both get their cars washed and fill their gas tanks at the same gas station. Javier pays $26.96 for a car wash
and 5.6 gallons of gas. Ellema pays $48.62 for a car wash and
13.2 gallons of gas.
a. What is an equation for the cost of gas and a car wash as a
function of the amount of gas bought? Show your work.

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.