Complete the equation of the line whose y-intercept is (0,5) and slope is -9

y= ???

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?

Find two numbers if their sum is 91 and the ratio is 6: 7?

Percent increase and decrease. original number: 45 new number: 18