Find each number. Round to the nearest tenth if necessary./ 18 is 25% of what number? (show work)

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.

Do you mind if you guys me with this question i’m on number 8

Which graph has figures that can undergo a similarity transformation to justify that they are similar? (obviously not the third one)