I need to figure out what the measure of each angle is on this assignment ​

What is the length of the unknown leg in the right triangle ?

What are the solution(s) to the quadratic equation x2 – 25 = 0? o x = 5 and x = -5ox=25 and x = -25o x = 125 and x = -125o no real solution

If the scale factor between two circles is 2x/5y what is the ratio of their areas?