Final answer:
The interest Lonnie must pay is $52.50, and the future value of the loan is $4,052.50.
Step-by-step explanation:
To calculate the interest, we can use the formula:
Interest = Principal * Rate * Time
Substituting the given values:
Interest = 4000 * 0.0525 * (3/12) = $52.50
The future value of the loan can be calculated using the formula:
Future Value = Principal + Interest
Substituting the values:
Future Value = 4000 + 52.50 = $4,052.50