Achessboard has 64 square. at a chess tournament 84 chessboards were used. how many squares are there on 84 chessboards?

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?

What is the area of a triangle with vertices at (-3 3) (-3,2) and (1,2)?

Which best describes a central bank's primary goals? limiting inflation and reducing unemployment reducing unemployment and maintaining cash flow controlling stagflation and reducing unemployment managing credit and ensuring the money supply's liquidity