I need help with finding the quotient asap

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

Rena is building a 1: 180 scale model of a real castle. her model has a rectangular base that is 3 feet wide and 4 feet long what is the area of the base of the actual castle in square feet

Two triangles can be formed with the given information. use the law of sines to solve the triangles. b = 49°, a = 16, b = 14