algebra two :) please help?

Which represents the compound inequality x ≥ -2 and x < 4 using interval notation?

Which represents the compound inequality x < -2 or x ≥ 3 using interval notation?

Which is the solution set of the compound inequality?
-4 < a + 2 < 10

Which is the graph of the solution set of the compound inequality?
7 ≤ x + 4 or x - 1 ≥ 5

?2014-10-09T05:40:08Z

Answer: 1) -2 ≤ x < 4
2) no solution of compound inequality
3) Solution set is {a∈R| -6 < a < 8}
4)[3, ∞)
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