HELPP ! In which part of British North America was slavery most common ?

Although the largest percentages of slaves were found in the South, slavery did exist in the middle and Northern colonies. The overall percentage of slaves in New England was only 2-3%, but in cities such as Boston and Newport, 20-25% percent of the population consisted of enslaved laborers.

Explanation:

evaluate the extent to which the seven years' war (french and indian war, 1754–1763) marked a turning point in american relations with great britain, analyzing what changed and what stayed the same from the period before the war to the period after it.