Find the difference:
(4y^2+2y−8)−(​7y^2+4−y)

Asphere has a diameter of 10 in. what is the volume of the sphere?

Follow these steps using the algebra tiles to solve the equation −5x + (−2) = −2x + 4. 1. add 5 positive x-tiles to both sides and create zero pairs. 2. add 4 negative unit tiles to both sides and create zero pairs. 3. divide the unit tiles evenly among the x-tiles. x =

Find the area of a parallelogram with base 15 yards and height 21 2/3