Answer:
24
Explanation:
here's how I did it:
first, start in parentheses, following the order of operations, PEMDAS.
12 - 9 = 3
now, divide 3 by 4.
3 / 4 = 0.75 ( 3 quarters )
lastly, divide the sum of the numbers in the parentheses by 18.
18 / 0.75 = 24