Someone solve this it’s geometry

Asphere has a diameter of 10 in. what is the volume of the sphere?

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

Suppose a deep sea driver dives from the surface to 248 feet below the surface. he then dives down 10 more feet. use integers yo represent this situation. then find the driver' s present depth