The formula for the circumference, c, of a circle with given radius, r, is c=2nr. what is the circumference of a circle with radius of 7/2 meters

Taking algebra two apex courses and need with these questions

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.

Which of the following is an example of conditional probability