Sofia has fruit in a basket she has 3 3/8 and 2 7/8 she evenly splits it amount 4 ppl

Evaluate the expression for the given value of the variable 2×(c2-5) for c=4

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?

Opposite angles in a parrellelogram are