Iam sorry i cant see the qusetion
It would be 3 hours. This is 3 hours because the problem says that daniel takes 9 hours to clean and office building and mark takes 6 hours so if you subtract 9hours from 6 hours it would be 3 hours total. Now this can be 2 answers it can also be 15 hours if you were to add 9 hours to 6 hours.
132, if you add four to 50, and keep going until you get to 20
Each balloon string is 6ft , 6ft translates to two yards he’ll need 114 yards.
