Thomas buys a case of bottled water. a case contains 36 bottled of water and costs $4.69. thomas will sell each bottled of water for $0.75 at school event. how much profit in dollars will tomas earn if he sells all the bottles of water

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.