She sold 160 tickets in all because if you add up the fractions 2/9 and 1/3 you'll get 5/9 Then you multiply the fraction times the tickets she has to sell.
The initial payment per month being 30 and each movie being 2.50 means that if the total payment is 45 then you pay for 6 movies per month, 30x+6(2.5x)
