Sophie earns $12.80 per hour. she has to pay a loan to her parents in the amount of $100. after repaying the loan she wants to have at least enough money to buy sneakers for $130.40. write an inequality modeling the number of hours, x she needs to work to buy the sneakers

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?

Rose bought a new hat when she was on vacation. the following formula describes the percent sales tax rose paid b=t-c/c

If you measured the width of a window in inches and then in feet with measurement would you have the greater number of units