Part A: 2.5 ft = 30 in.
1.5 yd = 54 in.
42 + 30 = 72 in.
72 + 54 = 126 in.
So, they have one hundred twenty-six inches of ribbon.
Part B: 126 in. = 10.5 ft
In other words, they have ten and a half feet of ribbon.
Part C: 126 in. = 3.5 yd.
In other, OTHER, words, they have three and a half yards of ribbon.