Answer:
6
4
Step-by-step explanation:
The distributive property of 18(12), or simply 18 * 12, is 216. (This is your answer.)
Since Christi earns $21 per hour, to find how much she earns by working 19 hours per week we need to multiply the hourly wage by the number of hours she works in a week:

Her weekly wage is $399
Answer: D) $399