8
(76/10=7.6 Round up)
500 feet.
500 feet.
You will need at least 67 tiles. This will cover 150.75 square feet.
You need at least 2 figures to calculate that.
You would need two pairs. One pair for you and one pair for your friend.
1600 ft.
You will need at least 32 square yards of carpet to cover that area.
8
I suppose that one problem would be buying shoes. Most people have only two feet and shoes are sold in pairs. A person with five feet would need to buy at least three pairs of shoes. I am assuming that a person with 5 feet would have either two left feet and three right feet OR three left feet and two right feet. If the person has five left feet OR five right feet, then five pairs of shoes are needed. (Of course, if he's a twin, then all his problems are halved. Or doubled?) -- OR if you're looking for the answer to the math-puzzle teachers hand out the word for word answer is, "Buying two and a half pairs of shoes."
If you use a standard 4-inch depth, you will need at least 8.9 cubic yards.
1600 ft.
For a 4-inch depth you need at least 14.81 cubic yards.