Rectangle ABCD has the length represented by the expression 5x-1 and the width represented by the expression 3x+7. Rectangle JKLM has a length represented by the expression 2x-5 and a width represented by the expression 4x+11. Which expression can be used to represent the sum of the perimeter of Rectangle ABCD and Rectangle JKLM

1- is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis. 2- 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. 3- 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 part b?