Can some one explain how to answer this and what the answer is 8+4(s-4)t

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)?

What is the slopeof the live that passes through the points and (-2,-5) and (3,-1)

If julia has a value of x5.4 that is equivalent to x10.9 true or false. explain