Please someone help me

One card is dealt from a 52 card deck. find the probability that the dealt card is a 4 or a black 7

In a graph with several intervals o data how does a constant interval appear? what type of scenario produces a constant interval?

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