How can i compare two different data sets?its urgent

Mozart lenses inc. recently introduced seelites, a thinner lens for eyelasses. of a sample of 800 eyeglass wearers, 246 said they would purchases their next pair of eyeglasses with the new lenses. lenses inc. estimates that the number of people who purchase eyeglasses in a year is 1,700,000. most eyeglasses wearer buy one new pair of eyeglasses a year. what is the annual sales potential for the new lenses.

Atriangle has a side lengths of 18cm, 80 cm and 81cm. classify it as acute obtuse or right?

If tan2a=cot(a+60), find the value of a, where 2a is an acute angle