Which number produces a rational number when multiplied by 1/5

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?

Solve for x. −3/4(x+2)=6 enter your answer in the box

Aramp rises 4 feet over a distance of 10 feet. what is the length of the ramp?