please do out on paper and explain steps

Mr. Gardner has a 6000 loan and is being charged an interest rate of 8% convertible monthly for a term of 4 years. At the end of each month, he pays only half of the interest due. However, with his 10th payment, he pays an additional 3000. What is his outstanding balance immediately after the 10th payment? Mr. Gardner has a 6000 loan and is being charged an interest rate of 8% convertible monthly for a term of 4 years. At the end of each month, he pays only half of the interest due. However, with his 10th payment, he pays an additional 3000. What is his outstanding balance immediately after the 10th payment