Answer:
1,243 miles
Step-by-step explanation:
The original value is: 18,146 miles
The new values is: 33,062 miles
The increase is hence: The original value subtracted from the new value
33062 - 18146 = 14916
The increase is 14,916 miles which has been gained over 12 months
The average miles per month can be gotten by dividing the increase by 12
14916 ÷ 12 = 1243
∴ On average, Jerrie has driven 1,243 miles per month