Find z
I don’t understand how to do it

On a piece of paper graph f(x)=5•(0.4)^x

The sales totals at macy's food store have increased exponentially over the months. which of these best shows the sales in the first three months?

The diagonals of a quadrilaretral intersect at (-1,4). one of the sides of the quadrilateral is bounded by (2,7) and (-3,5) determine the coordinates of the other side in order for the quadrilaretral to be a square.