What is the measurement for the exterior angle

Aclass consists of 55% boys and 45% girls. it is observed that 25% of the class are boys and scored an a on the test, and 35% of the class are girls and scored an a on the test. if a student is chosen at random and is found to be a girl, the probability that the student scored an ais

What are the equivalent ratios for 24/2= /3= /5.5=108/ = /15

Find the solution(s) to the system of equations. select all that apply y=x^2-1 y=2x-2