What replaced feudalism during the Middle Ages? How?

What would lead a historian to consider two events to have a relationship of correlation rather than causation?

What tactic did palestinians use against israel in 1987

Plz ive been stuck on this question forever. in 1753 george washington was sent on a mission to a. build a fort at the point where the allegheny and monongahela rivers form the ohio river. b. attack the french at fort duquesne. c. attack the french at fort neccessity. d. deliver a message to the french demanding that they leave the ohio river.