Calculate the surface area of the isosceles trapezoid based
6 cm
5 cm
4 cm
14 cm

Aphrase is shown read the phrase and give me the answer

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.

What’s the answer? and how do i solve it ?