Answer: 9
Reason:
PEMDAS says that we first evaluate what's in the parenthesis
6/2(1+2) = 6/2*3
Then we evaluate the division operation first before multiplying later. The "M" and "D" of PEMDAS are on the same precedent level or operation level. The rule is to evaluate from left to right when faced with these two operations together.
6/2*3 = 3*3 = 9
If the original expression was 6/( 2(1+2) ) then the answer would be 1 since
6/( 2(1+2) ) = 6/( 2(3) ) = 6/6 = 1