Find the sum and express it in simplest form. (-5y^3-7y-7)+(7y^3+8y)

Simplify.7x + 3y - 2 + 6x + 1 + y squared 2 you! ; )

Find the length of the diagonal of the rectangle. round your answer to the nearest tenth. || | | 8 m | | | | 11 m

Clarence wants to buy a new car. he finds an ad for a car that costs 27,200 dollars. suppose his local sales tax is 7%. -how much would he have to pay? -what is the cost of the car including tax? -if clarence has 29,864 saved, can he pay cash to buy the car?