Terry is making 4 hat and scarf sets. Each scarf requires 1 yards of material and each hat requires 30 inches of material.

How many feet of material does he need for all 4 hat and scarf sets?

Terry needs 22 feet of material. One yard is three feet, and he needs 4 yard-long scarves, so multiply 3 by 4, which gives you twelve. Next, figure for the hats. He needs 30 inches for 4 hats each, so multiply 30 by 4. That'll give you 120 inches. Convert the 120 inches to feet and you've got 22 feet total!

To solve this problem, all you have to do is add up the yards for the scarves and hats then convert that value to feet. Each scarf requires one yard of material and Terry is making four so he will need 4 yards for the scarves. Each hat requires 30 inches, and there are 60 inches in a yard to he will need 2 yards of material for the hats. Add the 4 yards for the scarves and the 2 yards for the hats to get 6 yards. Finally convert 6 yards to feet by multiplying 6 by 3 because there are 3 feet in a yard. This will give you 18 feet, which is your answer.