My wife got a quote to replace our roof. Since I haven't spoken to the
guy yet, I've got question about one thing he quoted:

"Additional cost of $45/sheet for 1/2" plywood."

I have 3/4" tongue & groove under the shingles, not plywood. He didn't
look in the attic, so I doubt he knows this.

Can I assume that the easy answer is - When I tell him it's 3/4"
tongue & groove he'll just quote me a higher price for 3/4" ply?