You and your friend split a restaurant bill and lave a tip. you pay half plus 5$ your friend pays half of the bill plus 25% oh half the bill you and your friend pay same amount how much is half the bill

Three coins are flipped. what is the probability that there will be at least two tails?

Acertain population of bacteria demonstrates exponential growth doubles in size every 4 days. how long will it take the population to triple in size?

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.