On a shopping trip, steve spent $3 on a bus ticket, $12 on a game,
and $6 for lunch. he had $25 left after the trip. how much money
did he start with?

Well, first let’s add up how much Steve spent in total. So, 3+12+6 which equals 21. Steve had $25 left so add the leftover to the amount spent which would be 25+21=46

With out knowing the functions you have to chose form, this could be one.y = 5.00xx = hours worked and y = the money he will earn.