Hi. I checked your answers, and they all look correct. (In #13, your answer for the area seems to be 432.16, but I'm thinking the digit 3 is actually a 5. It just looks like a 3.)
Also, I'm not sure what instructions you received with this assignment.
When we're given specific units (like inches or centimeters), it's good form to state the units with the answer.
For examples: 7850 sq cm instead of 7850, or 69.08 yd instead of 69.08
Also, did your instructor tell you to use 3.14 as a decimal approximation for Pi, or was that your choice? If you were told that Pi=3.14 that's okay. If you were supposed to use a more precise value for Pi (like the one stored in your scientific calculator), then most of your answers have rounding errors.
These comments notwithstanding, you did good work! Cheers :cool: