C. The Roaring 20’s (1920 – 1929)
China joined the side of the Tripple Entente during World War I.
Answer:
The 40th term of (255, 250, 245...) is 60.
Explanation:
so here we minus 5 from 255 to get to 250 and we do it again to get to 245. for reaching the 40th term we should do it 39 times.
so, 255+ (-5) (39) = 255-195 = 60
which is our 40th term.
Answer:
Preservation
Explanation:
They preserved much classical text(Not their own but Roman and Greek). They introduced the Arabic number system