A variable needs to be eliminated to solve the system of equations below. Choose the correct first step 4x + 3y = 34 40 + 8y = 24

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