Directions: Solve the following problems. Circle your answers.

1. Joe's rich uncle gave him a looney on his first birthday. On each birthday after that he doubled his previous gift. By the day after Joe's eight birthday, what was the total amount that his uncle had given him?

2. Solve for x.

10x - 38.1 = 1.9

3. Solve for n.

5n = 60 - 5n

4. Solve for x.

5x - 32 + 7x = 16