How do I convert this from square feet to square yards?

460ft * 1yd^2 / 9ft^2

I know the naswr is 52yd^2 but I don't know how they get that? Thanks

you mean 460ft2, I am certain. Your conversion factor 1yd^2 per 9 ft^2 is correct.

If you multiply the above, you end up with

460yd^2/9 which is 52 yd^2