The Science Club went on a two-day field trip. The first day the members paid $50 for transportation plus
$20 per ticket to the planetarium. The second day they paid $100 for transportation plus $17 per ticket to
the geology museum. Write an expression to represent the total cost 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