Jessica notices that party central is running a special for play packages. the advertisement shows that
each package includes 3 rounds of go-karts and 45 arcade tokens, plus $2.00 off the regular price. there is a group on
seven friends purchasing this package, including jessica. let a represent the cost of a round of go-karts, and let
represent the cost of a token. write two different expressions that represent the total amount this group spent. explain
how each expression describes the situation in a different way.