What is the measure of C?

Which value of m will create a system of parallel lines with no solution? y = mx - 6 8x - 4y = 12

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.

What is the slope of (0,32) and (100,212)