seriously what class are you taking? It's like class for financial advisers geese...
first we do $89.95 times 2, this results in $179.90
then suddenly, John remembered that they gave him a $95 gift card, so we subtract $179.90 from $95 to get $84.90
then for some unknown reason he remembers that he received $12.75 from the company as well, which then brings us down to $72.15
Sorry John, should have paid your over priced phone bill when you had the chance