Select all of the following statements that are true. -3 < -1 and (-3)2 = 6. if 6 · 3 = 18, then 4 + 8 = 12. -5 · 3 = -15 or () = 20. if 6 > 10, then 8 + (-3) = 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.