Answer:
5 EXP x 50 Monsters = 250 EXP
Step-by-step explanation:
Let's say, the amount that each side was increased was "a"
so, it was 5 wide and 12 long, now it's 5+a wide and 12+a long
we know the area is 120, so whatever "a" is, we know that
(5+a)(12+a) = 120
so

use those factors, solve for "a"
Answer:
Coprime numbers (relatively prime). Numbers have no common prime factors.