What is the approximate volume of a sphere with a radius of 6 cm? use 3.14 to approximate pi and express your answer in hundredths.
cm3

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.

The suare root of 9x plus 7 plus the square rot of 2x equall to 7

How many ordered pairs of positive integers satisfy xy=32?