Can someone me complete this table?

Mr. brettler is hanging up a 5-foot tall rectangular welcome sign in the gym. he has drawn a sketch on a coordinate grid. he has the lower vertices of the sign at (9, –3) and (–6, –3). where would the upper vertices be on the grid?

If wxyz is a square, which statements must be true? plz < 3

Benefit(s) from large economies of scale, in which the costs of goods decrease as output increases. natural monopolles perfect competition