Can someone help me with this please

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)?

The function show two sisters' savings account and the rate at which they plan to deposit money

Check all that apply. f is a function. f is a one-to-one function. c is a function. c is a one-to-one function.