Solve the open sentence. –1 ≤ n + 2 ≤ 6

n ≤ 1 and n ≤ 6

n ≥ 3 and n ≤ –2

n ≥ –3 and n ≤ 4

n ≤ –3 and n ≤ 2

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.