Wade can paint a certain room in 7 hours. rhonda can paint the same room in 5 hours. how long will it take them working together to paint the room? round your answer to the nearest hundredth if necessary.
come up with a rational expression to solve this problem.

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