Write a compound inequality that represents the situation.
all real numbers at least –6 and at most 3
–6 < x < 3
–6 < x ≤ 3
–6 ≤ x ≤ 3
–6 ≥ x ≥ 3
all real numbers at least –6 and at most 3
–6 < x < 3
–6 < x ≤ 3
–6 ≤ x ≤ 3
–6 ≥ x ≥ 3