"the science club went on a two-day field trip the first day of the members paid $70 for transportation plus $12 per ticket to the Planetarium. the second day they paid $90 for transportation plus $9 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 the two days for the 'n' members of the club is given by "