**
7). ****The area of a square is 81 square feet. How long is its side?**

Answer:____________

8). **The length of a rectangle is equal to two times its width. The area is 128 square feet. What is the length of the short side?**

Answer:____________

9). **The second angle of a triangle is 10 degrees larger than the first, and the third angle is 20 degrees larger than the first. What is the smallest of these 3 angles?**

Answer:____________

10). **How many square feet are in a square yard?**

Answer:____________

11). **How many cubic feet are in a cubic yard?**

Answer:____________

12). **If I have 54 cubic feet of rice, how many cubic yards is that?**

Answer:____________

13). Extra credit: (Draw a picture)

**A new runway is to be built for an airport, and needs dirt to fill it in. It will be 8500 feet long, 150 feet wide, and will need to be filled to an average height of 160 feet. How many cubic feet of dirt will be needed to build the runway?**

Answer:____________