What number is the same as 7 tens and 20 ones?
what number is the same as 5 tens and 13 ones ?

7 tens=10,10=70
20 ones=1,1=20
which sum up to be 90
5 tens=50
13 ones=13
=63

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