Riley is saving up to buy a new television. She needs a total of $1,150.89. Riley has saved $200.13 already and earns $79.23 per week at her job. How many weeks does Riley need to work to save enough money to buy the new television?
A. 12
B. 13
C. 11
D. 10

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?