Mrs. Ward create a scavenger hunt for her algebra students and hid a stash of candy inside one of the school's empty lockers. The first student who was able to solve the final clue (seen below) would claim the candy.
Final Clue: The treasure is located a locker number: 30 - 4² ÷ |10 - 12| + 5 • 630 - 42 ÷ [10 - 12] + 5 • 6
Evan's work
Step 1: 30 - 4² ÷ |-2| + 5 • 6
Step 2: 30 - 4² ÷ 2 + 5 • 6
Step 3: 30 - 16 ÷ 2 + 5 • 6
Step 4: 14 ÷ 2 + 5 • 6
Step 5: 7 + 30
Step 6: 37
A. In which step did Evan make his error?
B. Determine the locker number that holds the candy by correctly simplifying the expression. be sure to show all your steps.