Ican buy 56 diapers at babies-r-us for $28, and i can buy 112 diapers online for $52. which is the better deal, and how much will you save per diaper?
a) babies r us by $0.04
b) online by $0.04
c) babies r us by $0.15
d) online by $0.15

Onnie is considering doing some long term investing with money that she inherited. she would like to have $50,000 at the end of 30 years. approximately how much money would lonnie need to put into an account earning 6% interest compounded annually in order to meet her goal?