In a inequality how do you do know when to flip the signs

The parabola opens: y=√x-4 (principal square root) up down right left

What is the value of the expression 9+n/3-6 when n = 12? 1. 5. 7. 12.

Consider the polynomials given below. p(x) = x4 + 3x3 + 2x2 – x + 2 q(x) = (x3 + 2x2 + 3)(x2 – 2) determine the operation that results in the simplified expression below. 35 + x4 – 573 - 3x2 + x - 8 a. p+q b. pq c. q-p d. p-q