Apleasure boat sets out for a cruise on a river, sailing upstream 24 miles and then turning around and returning to port. the trip upstream requires 144 minutes and the trip downstream requires 40 minutes. find the speed of the boat in still water and the speed of the current in miles per hour (mi/h). round to the nearest whole number.

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