K = ⟨-1; ∞)	K = {x R; x ≥ -1}
L = (-∞; 8)	L = {x R; x < 8}
M = ⟨-7; ∞)	M = {x R; x ≥ -7}
N = (-∞; -2⟩	N = {x R; x ≤ -2}
O = (0; ∞)	O = {x R; x > 0}
P = ⟨9; ∞)	P = {x R; x ≥ 9}
Q = (-∞; -3)	Q = {x R; x < -3}
R = (-∞; -1⟩	R = {x R; x ≤ -1}
S = ⟨-9; 2⟩	S = {x R; -9 ≤ x ≤ 2}
T = (2; 5)	T = {x R; 2 < x < 5}