Can someone plz help me.

On a architect's drawing of a house, 1 inche representa 1.5

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.

Sawsan recorded the favorite sport of students at her school. she surveyed 200 students. how many students chose tennis?