Please help me i really need jt

For the first question the answer is a, for the second c, for the third d, for the 4th b, for the 5th a

There are 48 blue cards total

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