Final answer:
The total amount that needs to be paid back to the lender is $1,791.34.
Step-by-step explanation:
To calculate the total amount to be paid back to the lender, we can use the formula: Total Amount = Principal + Interest. In this case, the principal (amount borrowed) is $1,341 and the interest rate is 4.20%. To calculate the interest, we can use the formula: Interest = Principal imes Rate imes Time. The time period is 8 years.
Therefore, the interest can be calculated as: Interest = $1,341 imes 0.042 imes 8 = $450.34.
So, the total amount to be paid back to the lender is: Total Amount = $1,341 + $450.34 = $1,791.34.