Jonathan measured a line to be 17.3 inches long. If the actual length of the line is 18 inches, then what was the percent error of the measurement, to the nearest tenth of a
percent?

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.

If g^-1(x) is the inverse of g (x) which statement must be true

Ithink i know it but i want to be sure so can you me out ?