PLS HELP ME WITH THIS HOW DID THEY GET 80ft^2

Mr angulo buy 5/8 pound of red grapes and 3/8 pound of green grapes.how many pounds of grapes did mr angulo buy

Use the distributive law to multiply. 3(4x + 5y + 6)

Isuck at math ; ^; m a student solved this problem and said the answer is 3 feet. chase had a roll of ribbon that contained 7 7/8  feet of ribbon. he cut off one piece that was 3 5/8  feet long and another piece that was 1 1/4  feet from the roll. how much ribbon was left on the roll? is the student's answer reasonable? yes, the answer is reasonable. no, the answer is not reasonable. it should be about 2 feet. no, the answer is not reasonable. it should be about 13 feet. no, the answer is not reasonable. it should be about 4 feet.