A solid non conducting sphere has a radius of 500cm what is

Question

Solve the following question given below:

Question: A solid non conducting sphere has a radius of 50.0cm. It has a uniform charge density of 3.00 x 10^-3 C/m³.

Part A: What is the strength of the electric field-

A: at a distance of 2.00m from the center of the sphere?

B: at the surface of the sphere?

C: at a distance of 25.0cm from the center of the sphere?

Please show me how work it out above question.