What percent of the south had slaves?

Ineed answers 5 and 6 on my social studies homework reply to this question i posted

Which of the following would one might expect to be a characteristic of an edge city? (1 point) i. tenement housing ii. office parks iii. stable infrastructure iv. ghettoization i only iii only i and iv ii and iii iii and iv

According to article 2, what was george washington's major concern about the rebellion in massachusetts?