Rewrite expression using commutative property 4b+2

Identify the converse of the following conditional: if a point is in the first quadrant, then its coordinates are positive. if the coordinates of a point are not positive, then the point is not in the first quadrant. if the coordinates of a point are positive, then the point is in the first quadrant. if a point is in the first quadrant, then its coordinates are positive. if a point is not in the first quadrant, then the coordinates of the point are not positive.

Convert 2000 swiss francs to dutch guilders

Solve: 3x+y=6 4x-2y=18 show all work !