Below is a graph that represents the total profits for a third month. write the equation of the line that represents this graph. show your work or explain how you determined the equations. need now! limited time! ! @meerkat18

Suppose that the price p, in dollars, and the number of sales, x, of a certain item follow the equation 4 p plus 4 x plus 2 pxequals56. suppose also that p and x are both functions of time, measured in days. find the rate at which x is changing when xequals2, pequals6, and startfraction dp over dt endfraction equals1.5.