Part 1 of 2 The monthly water bill is a function of the number of gallons used. The cost is $9.10 for 10,000 gal or less. Over 10,000 gal, the cost is $9.10 plus $1 for each 1000 gal over 10,000 with any fraction of 1000 gal charged at a fraction of $1. On what interval is the cost constant? on what interval is the cost increasing?

Find the amount in a continuously compounded account for the given condition. principal: $1000, annual interest rate: 4.8%, time: 2 yr

Can someone answer this question? : )

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.