Apply the zero matrix

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.

Solve for n? [tex]z = \frac{3}{4} mn[/tex]

The perimeter of a rectangle is 42 inches. if the width of the rectangle is 6 inches, what is the length