A company advertises that all of its bottles will now contain 20% more shampoo. Jill writes the expression x÷0.2x to represent how many ounces of shampoo will now be in an bottle that originally had x ounces. which expression also shows an increase of 20%? it would be best and better if you would please show your work
A. x÷20

B. 1.2x

C. 0.2x+1

D. x + 1.2x

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?