Find the real zeros of the polynomial?

Use the graph of the sine function y=2sinθ shown below

At a sale this week, a desk is being sold for $213. this is a 29% discount from the original price. what is the original price?

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.