Math word problem homework help please?

A cylinder has a laternal surface area of 2.25•10^3 square centimeters and a height of 25 centimeters. Use 3.14 as an approximate for pi A) calcuate the radius,r,of the cylinder to the nearest tenth B) find the total surface area of the cylinder. Write your answer in scientific notation. Round coefficient to the nearest tenth. C) find the volume of the cylinder. Write your answer in scientific notation. Round the coefficient to the nearest tenth.