What is 24.21 written in expanded form? (2x10)+(4x1)+ 2x 10 + 1x 100 )( 10.- = (2x10)+(4x1)+(23 700 + 1x 1000 c (2x10)+(4x1)+ (2x1)-(110) (2x 10)+(4x1)+(2+1)+(1x HD​

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?