Give some examples of real life situations in which you could use unit rates to solve an equivalent ratio problem

The circumference of a circle is 5 pi cm. what is the area of the circle?

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.

Select the lengths in centimeters that would form a right triangle