Answer:
Amount receive after 20 year = $42,922.2746
Step-by-step explanation:
Given:
Principal(P) = $8,500
Interest compounded monthly(r) = 8.12% / 12 = 0.677% = 0.00677
Number of years(n) = 20 year = 20 × 12 = 240
Amount after 20 years = ?
Computation of Amount:

Amount receive after 20 year = $42,922.2746