If Ryan does a job in 10 hours and with the help of Molly they can do it together in 3 hours, how long would it take Molly to do it alone?

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.

Ann and betty together have $60 ann has $9 more than twice betty’s amount how much money dose each have

Write an inequality for this description. - one fourth of the opposite of the difference of five and a number is less than twenty.