Answer:
60
Explanation:
10 / 2 * ( 9 + 3 )
remember the order of operations: parenthesis first
10 / 2 * ( 9 + 3 )
10 / 2 * 12
now there is only multiplication and division, so it shouldn't matter which is done first, the answer will still be the same
10 / 2 * 12
5 * 12
60