22 is what percent of 88?

7x+8y=-18, 4x-9y=-3 solve the system of equations

Segment xz is bisected by point y. if xy = 12x, and the measure of xz = 18x – 6, solve for x

Due to a packaging error, 4 cans labeled diet soda were accidentally filled with regular soda and placed in a 12 pack carton of diet soda. two cans were randomly selected from this 12 pack. what is the probability that both cans were regular soda?