Answer:
This question isn't worded properly but I'll try my best to answer it. What I think you're trying to ask is "How much money would 40 tickets cost?"
Step-by-step explanation:
Well, to make the multipulcation easier you would take away the zero just for now. It should look like this: 4x$10.50=42
Your answer is $42, but then you add the zero back on to that. So now the answer is $420.
Thanks, I hope this helped! If it did I wouldn't mind being mark brainlist!