Which of the following is not equivalent to the Following expression 2x²-16 ​

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]_°