Answer:
He will have $9,684.44 after 13 years
Step-by-step explanation:
Data provided in the question:
Amount invested = $7,000
Interest rate, r = 2.5% compounded monthly = 0.025
Time period, t = 13 years
Now,
Final amount = Amount invested ×

n = number of times compounded per year = 12 for compounded monthly
Thus,
Final amount = $7,000 ×

or
Final amount = $7,000 × ( 1.002083 )¹⁵⁶
or
Final amount = $7,000 × 1.383491
or
Final amount = $9,684.44
Hence,
He will have $9,684.44 after 13 years