Ralph is building a greenhouse lo grow tomatoes during the winter for sale as shown in the ligure. He plans to cover the top and the two sides with glass. For ease of access, he plans to cover the front and back with plastic sheets. The glass costs $225 per square yard.

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