Rewrite the expression as a product by finding the GFC 72t + 8 on a time limit till 4 pm today pls help

The answer is 10. and if you go by pemdas you would 1. multiplication 2. division 3. addition 4. subtraction

Thats where they was ported and the fields that noone really knew much about needed tended, so they put slaves out there do free work and huge profits and so on the north decided to hold its own and was more different way of survival did not have same climate conditions to afford protecting slaves from winter so expenses be diff from south

Ithink the answer is b.