A shop sells CDs. The pictogram shows information about the CDs sold. Key: 0 represents 20 CDs
Pop
Jazz
Classical Od
Rock
a)
Which type of CD was the mode?
b)
How many more Rock CDs than Classical CDs were sold?
c)
How many CDs were sold altogether?

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.