HELP I NEED THIS ANSWERED

THE FORMULA IS (x, y) ->

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)?

Write the sine and cosine values of a, b, respectively, in the figure for (1) and (2) + explanation.

The ph level of a blueberry is 3.1 what is the hydrogen-ion concentration [h+] for the blueberry