I need help with geometry

Find the distance from the theater to the library. leave your answer in simplest radical form if necessary. 12 √12 74 √74

Sara goes on a slingshot ride in an amusement park. she is strapped into a spherical ball that has a radius 3*10^2 of centimeters. what is the volume of air in the spherical ball? use this formula: volume of a sphere=4/3pi, r^3 , where r is the sphere’s radius.

If the square of a positive integer is added to 2 times the integer the result is 48. find the integer.