Hello Dezaria. (I love your name) Let's figure this out!
{[(3·4)+18]+[(6·7)-27]} (Multiplication in parenthesis first)
{[ 12 + 18]+[ 42 - 27]} (Parenthesis)
{ 30 + 15 } (Add)
45 / 5
9 (Answer)
Thus, 9 is your answer.
Feel free to contact me for anymore help. I'll do what I can. Have a nice evening.