Can you answer 13) the sum of two rational numbers is rational. explain. 14) the product of a nonzero rational number and an irrational number is irrational. explain. 15) the product of two rational numbers is rational. explain. 16) the sum of a rational number and an irrational number is irrational. explain. 18) yes, the product of two irrational numbers can be rational when …. (give your example)