Find the savings plan balance after 6 months with an apr of 9% and monthly payments of $100

Me. i can't figure out this question. give an explanation too. .

Suppose a store sells an average of 80 cases of soda per day. assume that each case contains 24 cans of soda and that the store is open 10 hours per day. find the average number of soda that the store sells per hour.

Stacey filled her 1/2 cup of measuring cup seven times to have enough flour for a cake recipe how much flour does the cake recipe calls for