Pls help i know how to do some of these but this one i’m stuck on

What is the best reason for jacinta to have a savings account in addition to a checking account

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)?

Can somebody 1. what is the formula for finding the vertical distance between two points on a coordinate plane?