Josephine is carpeting the floor of her living room with carpet squares. The area she is carpeting measures 15 × 15 square feet, and each square measures 2 × 2 square feet. How many carpet tiles does Josephine need? Considering that carpet tiles can be halved or quartered if necessary, how many carpet tiles should she buy?

1. Determine how many carpet tiles Josephine will need for 1 row.
2. Solve the expression to find how many carpet tiles Josephine will need for 1 row.
3. Determine how many rows of carpet tiles it will take to cover the floor.
4. Solve the expression to find how many rows Josephine will need for the floor.
5. Determine how many carpet tiles are needed in total.
6. Find how many whole carpet tiles Josephine should buy.
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