Wow. You spew a LOT of crap. But crap it is. The M48 had plenty of armor. They took multiple hits from the T-62 and continued to fight during Yom Kippur.
NO tank on Earth can survive a burst from the GAU 8. None. The best a challenger or Abrams can hope for is a simple mobility kill. Odds are they are finished.
You make me laugh with your tanks shooting back at an A-10 fantasy horse poo.
DEDICATED anti aircraft platforms have a hard time tracking the A-10, and you think a tank is going to be able to do it!
Have you ever even looked through the gunners sight on a tank?
Methinks the answer is no.
Here is an artist recreation of a modern tank fighting off an A-10 with their 12.7mm or .50 cal machine gun.