Can you please explain the steps?

(9%) Problem 6: Ahollow, uniformly charged sphere has an inner radius of r1 = 0.075 In and ' an outer radius of r2 = 031 In. The sphere has a net charge of Q = 2.1 1113. I D A What is the magnitude of the electric eld, in newtons per coulomb, at a distance of r = 0.17 In from the center of the sphere