The length of a rectangular rug is 4 less than twice its width. The perimeter of the
rug is 40 feet.
Part A
Write a system of equations that can be used to find the length, 1, and width, w, of
the rug, in feet.

Kylie explained that (-4x+9)^2 will result in a difference of squares because (-4x+9)^2 (-4x+9)^2 =(-4x)^2+(9)^2=16x^2+81

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.

Siri can type 90 words in 40 minutes about how many words would you expect her to type in 10 minutes at this rate