Hey Please help me I would appreciate it

In trapezoid bath, ah=19.7 and et=16.1. identify be.

Pls! does anybody know a shortcut for answering these types of questions in the future?

Clarence wants to buy a new car. he finds an ad for a car that costs 27,200 dollars. suppose his local sales tax is 7%. -how much would he have to pay? -what is the cost of the car including tax? -if clarence has 29,864 saved, can he pay cash to buy the car?