The question in the picture

If the sales price of a dvd is $20 and the markup is 34%, what is the cost of the dvd?

Write an equation of the line that passes through 9,2 and is parallel to the line y=5/3x+9

Cal's go cart has a gas tank with the dimensions shown below. he uses a gas can that holds 11 gallon of gas, to fill the go cart tank. 11 gallon = 231 inches^3 how many full gas cans will it take to fill the go cart's gas tank?