Simplify.

(x--7)

a. -3+12x+21

b. -7+19x+21

c. -7+5x+21

d. +-5x-21

Use the graph to determine the range. which notations accurately represent the range? check all that apply. (–∞, 2) u (2, ∞) (–∞, –2) u (–2, ∞) {y|y ∈ r, y ≠ –2} {y|y ∈ r, y ≠ 2} y < 2 or y > 2 y < –2 or y > –2

Which one ? is the answer and how to find this answer

Pyramid shown has a square base that is 18 inches on each side has a surface area of 164 square inches what is the slant height