At the bank, brent exchanges $50 in bills for 50 one dollar coins. the total mass of the coins is 405grams. estimate the mass of 1 one dollar coin

You’re repairing a large rectangular aquarium. the final step is to cover the glass with a protective film. the front and back of the aquarium measure 4 meters by 2 meters, and the sides of the aquarium measure 3 meters by 2 meters. how many square meters of protective film do you need? ( )

Tom had a total of $220 and he spent $35 on a basketball ticket . what percent of his money did he have left?

Triangle xyz has vertices x(1,3), y(0,0)