Express 4/10 as a decimal number, and identify another decimal number that is equal to it. 4/10 expressed as a decimal number is? which is equal to?

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.

Nikolas calculated the volume of the prism. his work is shown below.

Olga bought a new skirt that cost $20. sales tax is 5%. how much did olga pay, including sales tax? 7.