Excuse me, I never wrote that in this thread. I’m not sure where you pulled that from. There is basically nothing you can do with a community college math diploma. There are limited options with a BA or BSc in math. The best route is to become an actuary, but it’s hard. The other options may not be very high paying.
As for transfer credit, half of the time they won’t even transfer the credits. Especially math. They’re probably not going to give him credit for any of the advanced classes beyond calc 3 and intro linear algebra and diff eq.