Hi okay no question hello

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.

During a wright loss challenge your friend goes from 125 pounds to 100 pounds. what was the percent weight loss

Which of the following choices gives you a slope of 3?