Please explain how to do this
(2a^2-4a-8) / (a+1)

Mama mia restaurant used 1 2 2 1 ? of their mozzarella cheese making pizza and the remaining 6 4 64 ounces making pasta. how many pounds of mozzarella cheese did mama mia start with?

If you prove that ∆wxz is congruent to ∆yzx, which general statement best describes what you have proved?

Yvaries inversely as x. y =12 when x=5. find y when x=4