I AM GIVING BRAINLIEST!!! Pls help! No links, no stealing points, only correct answers!!

What is the zero of the function above?
A. -5
B. 2/5
C. 2
D. 5/2

How to solve it and what thw answer is

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)?

There are three bags: a (contains 2 white and 4 red balls), b (8 white, 4 red) and c (1 white 3 red). you select one ball at random from each bag, observe that exactly two are white, but forget which ball came from which bag. what is the probability that you selected a white ball from bag a?