CAN ANYONE HELP ME WITH VOLUME OF PRISMS

Y=4x^2+x-1 solve using quadratic formula

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.

You earn a 12% commission for every car you sell. how much is your commission if you sell a $23,000 car?