What were some of the contributions of islamic civilization 600 to 1000 a. d.?

mosaics, architecture, and the Arabic alphabet

the correct answer is to reduce tax

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.