You measure an electric field of 131 x 106 nc at a distance

Question

Solve the all parts of following problem given below:

Problem: You measure an electric field of 1.31 x 10⁶ N/C at a distance of 0.157m from a point charge. There is no other source of electric field in the region other than this point charge.

Part I: What is the electric flux through the surface of a sphere that has this charge at its center and that has radius 0.157m?

Part II: What is the magnitude of the charge?

Explain the each and every step in detail for help.