Bernies monthly phone plan can be reprented by the expresion $ 0.10x + $20 where x represents the number if minutes use. If he talked for 300 minutes lat month, how much was his phone bill

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?

There are 45 questions on your math exam. you answered 810 of them correctly. how many questions did you answer correctly?

Nikita wants to apply for student aid to fund her college education. arrange the steps involved in nikita’s application for financial aid