Planters who owned large plantation houses with at least fifty slaves made up about percent of the white population in the South in 1860. *

less than 1

Explanation:

The South largely depended on agriculture and developed plantations where cotton, tobacco, indigo, and other crops were grown. Southern people depended on the slave system. Slaves used by the planters to do work in the fields. Slaves owned by everyone in the South. Planters with more than 50 slaves consisted of less than 1 %, which was extremely rare. In 1860, about 11,000 white Southerners owned more than 50 slaves.  

there are no answer given

explanation:

the answer that best explains what happened to george washington at fort necessity, pennsylvania is : washington was attacked by the french but was able to negotiate with them to peacefully end fighting. the battle took place on july 3, 1754. the battle is considered as being the start of the french and indian war.