Can someone help? If b/a=c/b=d/c=2/3, find a:b:c:d.

Ineed me i stuck and i don’t want to get it wrong

Which of the points a(6, 2), b(0, 0), c(3, 2), d(−12, 8), e(−12, −8) belong to the graph of direct variation y= 2/3 x?

Maurice has 54 fewer comic books than rebecca. they have 130 comic books together .how many comic books are in maurices collection ? how many comic books are in rebeccas collection