Answer:
If Greg graduates in 4 years (8 semesters) he will owe 12000Dhs.
Explanation:
Each semester Greg will owe 2,500Dhs.
2,500•8 semesters = 20,000
But Greg saved 8,000Dhs before he started college.
20,000-8,000= 12,000
So, Greg will owe 12,000Dhs