4. two different telephone carriers offer the follow ng plans that a person is considering. at& t has a
monthly fee of $20 and charges of $.15/min for calls. verizon has a monthly fee of $5 and charges
$.20/min for calls. find out how many minutes of ceiling would make the two plans equai.

Name the most appropriate metric unit for each measurement like a length of an carrot

Need on this geometry question. explain how you did it.

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?