Final answer:
Rich will accrue $1,124.73 in interest during the 4.5-year nonpayment period. The new principal when he begins making loan payments will be $9,024.73. His monthly payment if he decides to defer payments until after the grace period will be approximately $82.36. He will end up paying $1,992.72 in interest once he pays off the loan.
Step-by-step explanation:
a. To calculate the interest accrued during the 4.5-year nonpayment period, we can use the formula:
Interest = Principal × Rate × Time
Interest = $7,900 × 0.0429 × 4.5 = $1,124.73
Therefore, Rich will accrue $1,124.73 in interest during the 4.5-year nonpayment period.
b. If Rich decides to make no payments during the 4.5 years and the interest is capitalized, the new principal will be:
New Principal = Principal + Accrued Interest
New Principal = $7,900 + $1,124.73 = $9,024.73
Therefore, the new principal when he begins making loan payments will be $9,024.73.
c. To calculate his monthly payment if he decides to defer payments until after the grace period, we can use a loan amortization formula:
Monthly Payment = (Principal × Rate) / (1 - (1 + Rate)^(-Number of Payments))
Monthly Payment = ($9,024.73 × 0.0429) / (1 - (1 + 0.0429)^(-120))
Monthly Payment ≈ $82.36
Therefore, his monthly payment will be approximately $82.36.
d. To calculate the total interest he will end up paying once he pays off the loan, we can use the formula:
Total Interest = Total Payments - Principal
Total Payments = Monthly Payment × Number of Payments
Total Payments = $82.36 × 120 = $9,892.72
Total Interest = $9,892.72 - $7,900 = $1,992.72
Therefore, he will end up paying $1,992.72 in interest once he pays off the loan.
e. If Rich got a subsidized loan instead, the interest would not accrue during the nonpayment period. Therefore, his monthly payment would be the same as that calculated in part c, which is approximately $82.36.
f. Assuming all other factors remain the same and he makes the calculated monthly payment of approximately $82.36, the total interest he will pay over the term of his loan can be calculated using the formula:
Total Interest = (Monthly Payment × Number of Payments) - Principal
Total Interest = ($82.36 × 120) - $7,900 = $648.21
Therefore, he will now pay $648.21 in interest over the term of his loan.
g. Since he made his last monthly interest-only payment on November 1 and his next payment is due on December 1, the amount of that interest-only payment can be calculated using the formula:
Interest Payment = (Principal × Rate) × (Number of Days / Total Days in the Month)
Interest Payment = ($9,024.73 × 0.0429) × (30 / 30) = $32.74
Therefore, the amount of his next interest-only payment will be $32.74.