What was the interest paid for a loan of 800 at 5 percent annual interest for 9 months?

To calculate the interest paid on a loan of $800 at a 5 percent annual interest rate for 9 months, you can use the formula: Interest = Principal × Rate × Time. Here, the time should be in years, so 9 months is 0.75 years. Thus, the interest is $800 × 0.05 × 0.75 = $30. Therefore, the interest paid for the loan is $30.