Your cell phone plan is $35.98 month plus a utilities tax of 6.5% apr. during the year, you go
40 minutes over your plan at a rate of $0.35 minute. how much do you pay for the overages?
$49.98
$53.23
$14.00
$14.91

Multiplying an even number of negative numbers gives an answer that is choose from:

How do you find principle and simple interest

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?