The wonder store sells books at one price and movies at another price. lauren purchased seven books and three movies for a total of $99.50. logan purchased two books and six movies for a total of $121. what was the cost of each book and each movie?

How can we find the measure of an exterior angle if we know the measurement of an interior angle

The angles below are supplementary. what is the value of x? a pair of supplementary angles is shown. one angle measures 7x + 33, and the other angle measures 70. 5.3 8.14 11 14.7

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.