human
Mitzi brought $75 to the amusement park. She spent $30 on a ticket, $13 on food, and $23 on a T-shirt. How much money does she have left?
assistant
How much money did Mitzi spend? ** Mitzi spent a total of $30 + $13 + $23 = $<<30+13+23=66>>66.
How much money does Mitzi have left? ** So she still has $75 - $66 = $<<75-66=9>>9 left.
#### 9