12, 15, 10, 15, 11, 12, 15. 1. Find the mean (Add the digits, then divide by how many numbers you see).

2. Find the mode. (which number occurs the most times)

3. Mercury melts at 38 degrees Fahrenheit. Write this temperature as an integer (numbers and either a + or a -).

4. Adam walked 2 miles a day for the first week. Then he walked 3 miles a day for the next 9 weeks. How many miles did Adam walk in all?

5. Find the area of the polygon.