What would been the area of the base and the height with the volume?

What is the answer to this question? i'm a bit stumped. also how do i do it? 5(x - 4) = 2(x + 5)

Your car's gasoline tank holds 18 gallons of gasoline. on a trip in canada, the tank is one-quarter full. you want to fill the tank. how many liters of gasoline are needed to fill the tank

Describe a situation where it would be beneficial to round decimals to the nearest dollar. explain why you would use rounding in that situation.