Assignment:
XYZ University sends out its diplomas in a diploma mailer that's in the shape of a right circular cylinder. The ratio of the height of the mailer to the radius of its base is 5, and the total surface area of the mailer (lateral surface area, plus the areas of the top and the base) is 96 square inches. Find the height of the mailer and the radius of its base.
Provide complete and step by step solution for the question and show calculations and use formulas.