Drama students are selling tickets to their production of dracula. a total of 143 tickets were sold for saturday’s matinee. an adult ticket costs $7, and a student ticket costs $5. a total of $821 was collected. the students wrote the system of equations below and found that the solution was (90, 53). (equation below) how much money did they make on adult tickets? a. they made $53 on adult tickets. b. they made $90 on adult tickets. c. they made $265 on adult tickets. d. they made $371 on adult tickets.