Can anyone help with this? I’m on a road trip and I don’t really have any time to use my brain rn-

Answer:
-3
Step-by-step explanation:
Order of Operations: BPEMDAS
Step 1: Parenthesis
(105 ÷ -5)/(45 ÷ -9 + 12)
Step 2: Divide
-21/(-5 + 12)
Step 3: Parenthesis
-21/7
Step 4: Divide
-3