The science club went on a two-day field trip. the first day the members paid $30 for transportation plus $18 per ticket to the planetarium. the second day they paid $85 for transportation plus $15 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.

Which of these statements is correct? the system of linear equations 6x - 5y = 8 and 12x - 10y = 16 has no solution. the system of linear equations 7x + 2y = 6 and 14x + 4y = 16 has an infinite number of solutions. the system of linear equations 8x - 3y = 10 and 16x - 6y = 22 has no solution. the system of linear equations 9x + 6y = 14 and 18x + 12y = 26 has an infinite number of solutions.