Cost of tickets for Adults = $2.50
Cost of tickets for Students = $2
Number of Adults = 420
Number of students = 273
So,
[tex]\begin{gathered} \text{The cost of 420 adults = 420}\times2.50 \\ \text{The cost of 420 adults = 1050 Dollars} \\ \text{Cost of 273 students = 273}\times2 \\ \text{Cost of 273 students = }546\text{ dollars} \\ \text{Total cost = Cost of 273 students + Cost 420 adults} \\ \text{Total cost = 1596} \end{gathered}[/tex]So, the total cost of tickets = $1596
Answer : $1596okay