Can someone give the answers for these questions. Not necessary to write the steps but helpful if you could.(only until 7th question)

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

What is [tex] {7}^{98 + \sqrt{4} } - 3 \times (64 \div 2 + 4 - 36) \times a = a + 36[/tex]?

Darian wants to build a regulation size pool table that is 9 feet in length.he plans he ordered are 18 by 36 inches. what is the scale factor of the dilation he must use to build a regulation pool table