The correct answer is: $65.77089365\text{ kg}$
Explanation
To convert pounds to kilograms use the exact conversion factor $1\text{ lb}=0.45359237\text{ kg}$. Multiplying 145 pounds by that factor gives the mass in kilograms.
Steps:
- Formula: $kg = lb \times 0.45359237$
- Substitute: $kg = 145 \times 0.45359237$
- Compute: $kg = 65.77089365\text{ kg}$
Therefore, 145 lb ≈ 65.77 kg (rounded to two decimal places).