Earth orbits once around the sun every 36525 days at an

Question

Solve the all parts of given problem:

Problem: Earth orbits once around the sun every 365.25 days at an average radius of 1.5e11 m. Earth's mass is 6e24 kg.

Part A: How many seconds does it take the earth to orbit the sun?

Part B: What distance does earth travel in one year?

Part C: What is earth's average centripetal acceleration?

Part D: What is the average force that the sun exerts on the earth?

I need help to determine the average force that the sun exerts on the earth.