What is the answer for this question

David must install fencing around a lot that is shaped like a right angle.the side of lot that runs east-west is 200 ft long.the side of the lot runs north-south is 125 ft long.calculate how many feet of fencing he will need to surround the entire lot.

It says factor each expression completely 8y+48

Iwill give ! if m∠a=59 and m∠3=81°, what is m∠b? m∠b= _[blank]_°