Need the answer for this angle measures a? b (4x-16) c (5x+7)

What is the value of the expression below? (81^2)^1/8

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

Eden has a part time job. she is paid ? 7.20 an hour the week she worked 18 and a half hours how much is she paid