Find of the compound interest earned on $2300 invested for two years at 7% per

Bruce is getting materials for a chemistry experiment his teacher gives him a container that has 0.25 liter of liquid in it. bruce need to use 0.4 of this liquid for the experiment. how much liquid will bruce use?

Your food costs are $5,500. your total food sales are $11,000. what percent of your food sales do the food costs represent?

Aconstruction worker has rope 9 m long he needs to cut it in pieces that are each 3 /5 m long how many such pieces can he cut without having any rope leftover?