For your sports equipment store, you purchase a case containing 24 canisters of tennis balls for $60. you in turn charge $4 for each canister. how much is the price of each case of tennis balls marked up?

Brian has an unlimited number of cents (pennies), nickels, and dimes. in how many different ways can he pay 1414cents¢ for a chocolate mint?

Abox contains 1 plain pencil and 4 pens. a second box contains 5 color pencils and 5 crayons. one item from each box is chosen at random. what is the probability that a plain pencil from the first box and a color pencil from the second box are selected? write your answer as a fraction in simplest form.

How much dextrose 70% must be mixed with dextrose 5% to prepare 1,000 ml of dextrose 20%?