Brittany is teaching her students by using a rectangular drawing board. The length of the drawing board is 4x + 6 inches, and its width is 8x - 9 inches. Which of the following formulas can be used to find the area, A, of the drawing board?

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.

Carlos spent 1 1/4 hours doing his math homework he spent 1/4 of his time practicing his multiplication facts how many hours to carlos been practicing his multiplication facts

The cost of using a service is $0.25 per min. what equation correctly represents the total cost c, in dollars, for d days of use?