Answer:
Step-by-step explanation:
The 22nd Amendment formalizes the custom practiced begining with Washington on -- that is a president may serve 2 terms each one consisting of 4 years.
The 22nd says that a president is limited to 2 terms each 4 years long. However, there is a loophole. It a president serves less than 2 years of his term, then the VP can serve the remainder of the president's term Plus 2 additional terms each of 4 years length. So it is possible for the VP to serve 10 years.
If the former president makes it past 2 years, then the VP can only serve the remainder of the president's term + one more term.