HELP

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)?

If you could answer these your a life saver

Acoin is tossed 4 times which of the following represents the probability of the coin landing on heads all 4 times