Solve for x. 20x - 80 = 150
A) 11.5
B) 10.5
C) -11.5
D) -10.5

Solve the system of equations. y= 2x y= x^2 - 15

The area of a rectangle is 54x^9y^8 square yards. if the length of the rectangle is 6x^3y^4 yards, which expression represents the width of the rectangle in yards

Simplify. 4+3/7x-2-2/7x a. 2-5/7x b. 6-1/7x c. 2+1/7x d. 6+5/7x