just remember, everyone's prices are based on their area. Mine will be different than yours. If he has a 1/2 acre, I'd say at least $45 for mow (my area). That's with minimal trimming. Everything else. How many bushes? I don't do chemicals, so can't help you there.
GM trucks, Scag & Yazoo/Kees mowers, Shindaiwa, Redmax