George has cookies he gives 1/3 to mr huyge. george eats 4. then gives 1/2 to nancy. george has 16 cookies left. how many did he start with

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.