MATH 1012 QUESTION PLEASE HELP

Question

Brand A:  Diapers, :  ¢ per diaper   Brand B:  Diapers, :  ¢ per diaper   Note: Rounding to the nearest tenth of a cent is the same as rounding to the nearest thousandth of a dollar.Which is the better buy?

Answer 1

6.99/20 = 34.95 cents per diaper for Brand A

11.99/45 = 26.64 cents per diaper for Brand B

Brand B is cheaper, a better buy

you could buy 40 diapers with Brand A for 2(6.99) = $13.98

you could buy 40 diapers with Brand B for 40(.2664) = $10.66

10.66 < 13.98

26.64 < 34.95