Answer: Katie worked for 13.5 hours.
Explanation:
If Katie makes $12 an hour and made $162, we can use a simple formula to find how many hours she worked:
Total pay = Hourly rate × Number of hours worked
$162 = $12/hour × Number of hours worked
Number of hours worked = $162 ÷ $12/hour
Number of hours worked = 13.5
Therefore, Katie worked for 13.5 hours to earn $162.