Answer:
A. 18
Explanation:
Order of Operations: BPEMDAS
Step 1: Write out expression
12(20 - 18) - 3(6)
Step 2: Multiply parenthesis
12(20 - 18) - 18
Step 3: Parenthesis
12(3) - 18
Step 4: Multiply
36 - 18
Step 5: Subtract
18
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