(16 points )

the image shows susan's check register without the balance calculated after each transaction.

on may 10, 2014 susan made a cell phone service payment of $82.36. what is her balance after this transaction?
a) $671.93
b) $917.29
c) $1120.91
d) $1203.27

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?