What is the sum of 1-1+5-7+6

The perimeter of a movie screen is 54 meters. the screen is 18 meters wide. how tall is it?

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

Sam is picking fruit from a basket that contains many different kinds of fruit. which set of events is independent?