1. The problem is that WebAssign did not accept your answer. To help, I need to know the exact problem and your answer. 2. Please provide the original math question and the answer you submitted. 3. Once I have that, I can check the solution step-by-step and find any errors or formatting issues. 4. WebAssign often requires answers in a specific format, such as simplified fractions, decimals, or exact values. 5. I can guide you on how to format your answer correctly and verify the math.