Secret Code 13 + 4

Oh no! Just 5 minutes late to class, and your math teacher has confiscated your beloved comic. Tonight, you embark on a daring secret rescue mission to retrieve the comic from your teacher’s house which is filled with traps. To deactivate them, you’ll need to solve tricky math problems using addition, subtraction, multiplication, or division. Who will be the first to reach the safe and reclaim the comic using smart mental math?