CHALLENGE There are 8 people on a committee. Each time they meet, they shake hands with each other so that each person shakes everyone else's hand once. a Each time they meet, how many handshakes are there? Use numbers, labeled sketches, or words to model and solve this problem. Show all your work.​

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.