From the information given,
Students ticket = $4
Adult ticket = $6
Let student ticket be x, and adult ticket be y.
This means;
[tex]\begin{gathered} Cost=2y+7x \\ C=2(6)+7(4) \\ C=12+28 \\ C=40 \end{gathered}[/tex]ANSWER:
The calculations show that Jerome spent a total of $40