Answer:
378 ≤ x ≤ 678
Explanation:
The amount you would pay will differ depending on which DJ and which lights you will choose.
If you choose the less expensive options you would pay 219 for the DJ and 159 for the lights. 219 + 159 = 378.
Therefore, $378 would be the cheapest price you would have to pay.
If you choose the most expensive options you would pay 369 for the DJ and 309 for the lights. 369 + 309 = 678.
Therefore the amount x you would pay would be between these two total amounts.
The compound inequality will be 378 ≤ x ≤ 678.