Write two equivalent fraction 2/5

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

If x + 10 = 70, what is x? a. 40 b. 50 c. 60 d. 70 e. 80

An elevator travels 310 feet in 10 seconds. at that speed, how far can't his elevator travel in 12 seconds?