Find the volume of a rectangular prism with length 20 m, width 4.5 m, and height 3 m.

Plz help fast

Use the elimination method to find the solution to the system of equations. 2x - 3y = -9 -x + 3y = 6

What is the factored form of the following expressions? d^2 – 13d + 36

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?