Any one wanna join this pls i need friends

Ineed to know the answer to this algebra question.

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)?

Which graph represents the parent function of y=(x+2)(x-2)