Wich exspression stand for 32 more than the number d

Write an equation for the function that includes the points (1,4/5) and (2,2/3)

1- what do you think the product of a nonzero rational number and an irrational number is? is it rational or irrational? make use of variables, the closure property of integers, and possibly a proof by contradiction to prove your hypothesis.2- why do we have to specify that the rational number must be nonzero when we determine what the product of a nonzero rational number and an irrational number is? if the rational number were 0, would it give us the same result we found in the first question?

What is the unit rate of, 75% high fiber chimp food to 25% high protein chimp food.