3. you purchase a car using a $20,000 loan with a 5% simple interest rate. (a) suppose you pay the loan off after 4 years. how much interest do you pay on your loan? show your work. (b) suppose you pay the loan off after 2 years. how much interest do you save by paying the loan off sooner? show your work.

The numbers on a football field indicate 10 yard increments. you walk around the perimeter of a football field between the pylons. you walk a distance of 30623 yards. find the area and perimeter of the indicated regions. write your answers as mixed numbers, if necessary. a. one end zone: perimeter: yd area: yd2 b. the playing field (not including end zones): perimeter: yd area: yd2 c. the playing field (including end zones): perimeter: yd area: yd2