What is the product?
x-16 x - 2x2 + x
2x+8 x2 + 3x-4
x(x-4)(x-1)
2(x+4)
(-1)
(x+4)(x-4)
2x(x-1)
(x-4)(x-1)
2x(x+4)

There are 15 plates and each plate is either 7 or 12 inches diameter. which systems of equations do you use to find the number of 7 inch plates, x and 12 inch plates, y

Asailor is looking at a kite. if he is looking at the kite at an angle of elevation of 36and the distance from the boat to the point where the kite is directly overhead is 40 feet, how high is the kite?

Find and simplify an expression for the area of five rows of x squares with side lengths of x centimeters.