The science club went on a two-day field trip. the first day the members paid $50 for transportation plus $15 per ticket to the planetarium. the second day they paid $90 for transportation plus $12 per ticket to the geology museum. write an expression to represent the total cost in dollars for two days for the n members of the club. an expression that represents the total cost in dollars for two days for the n members of the club is given by .