Which completely describes the polygon?

What is a possible solutions of the x> 3?

How to use order of operation in 20 divide by 4 multiply 5 = 1

1) in triangle the, what is the measure of angle t (in degrees)? 2) in triangle bat, the measure of angle b is 66∘, and the measure of angle t is 77∘.what is the measure of the exterior angle at a (in degrees)?