Elise says, "If you subtract 13 from my number and multiply the difference by -6, the result is -60 ." What is 's number? please help will give brainiest!

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?

The area of the map is the product of the length and width. write and expression for the area as the product of the two binomials do not multiply

What is the length of the midsegment of a trapezoid with bases of length 15 and 25 ?