Given the arithmetic sequence where a(1) = 6 and a(5) = -6 what is a(3) ?

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?

Aright cylinder has a diameter of 8 m and a height of 6m. what is the volume of the cylinder

What is the geometric mean of 3 and 7? a) square root of 21 b) 2 square root of 6 c) 2 square root of 7 d) 21