Answer:Let's evaluate each expression step-by-step:1. 12√60.40: - First, find the square root of 60.40, which is approximately 7.77. - Multiply this by 12: 12 * 7.77 ≈ 93.24.2. 8√122.40: - Square root of 122.40 is approximately 11.07. - Multiply by 8: 8 * 11.07 ≈ 88.56.3. 35√229.25: - Square root of 229.25 is approximately 15.14. - Multiply by 35: 35 * 15.14 ≈ 530.4. 28√326.20: - Square root of 326.20 is approximately 18.05. - Multiply by 28: 28 * 18.05 ≈ 505.These are approximate values based on the square root calculations.Step-by-step explanation: