Answer
Option A is correct.
Devon has to save $162.50 monthly for the next 4 years
Step-by-step explanation
The total cost for the first year at school is $13,000
The parents plan to provide $5,200
So, Devon still has to raise the rest of the money over 4 years (48 months, since there are 12 months in 1 year) by saving each month.
Amount that Devon still needs to raise = 13,000 - 5,200 = $7,800
So, he has to raise $7,800 over 48 months
In 1 month, Devon has to raise (7,800/48) = $162.50 in order to reach his target.
Hope this Helps!!!