Rewrite the function f (x) = -2(x + 1)^2– 12 in the form f (x) = ax^2+bx+c.

Need on this one asap im almost done with this subject

At the electronics store you have a coupon for 20% off up to 2 cds you buy for cds with the original cost of $10.99 each the sales tax is 5% what is the total cost of your purchase

Sections of prefabricated wood are each 5 1/3 feet long. how long are 7 1/2 sections placed end to end?