Answer: 52 miles per hour
Step-by-step explanation:
From the above question speeders are fined $12 for each mile per hour.
Cathy was fined $84 on a road where the speed limit is 45 miles per hour.
If the fine charges per mile per hour is $12. The to find the no of miles per hour Cathy was over with is
$84/$12 = 7
Therefore 45 miles per hour plus 7 miles per hour is 52 miles per hour.
