Is there a proportional relationship between x and y

A.
B.
C.
D.

What is the measure of angle tvu shown in the diagram below

What numbers are included in the set of integers? what numbers are not included?

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)?