The answer is 4 (four).
Hope this helps!!! :)
The Big Bang probably occurred.
~30,000 B.C. North America Asian hunter-gatherers had crossed over the frozen Bering Strait to become first humans in North America.
~10,000 B.C. South America Those who crossed over on Bering Strait into North America had traveled as far south as Argentina by this point.
~6,000 B.C. Europe End of land bridge between Britain and continental Europe. Britain becomes an island.
~4,500 B.C. Brittany (France) The megalithic structures of Carnac were built.
~3,500 B.C. Wales Pentre Ifan is built.
~3,200 B.C. Ireland The Newgrange tomb is built.
Explanation:
6/t1=4/293= 1750/4 =439.5-273=166.5
The emperical formula for benzene (C6H6) is “CH”.
Answer: 0.19M
Explanation: 
Using Molarity equation:
= molarity of acid
= volume of acid
= molarity of base
= volume of base
Thus the concentration of the 
solution is 0.19M.
