a physical science test book has a mass of 2.2 kg. what is the weight on the Earth

Weight = (mass) x (acceleration of gravity).On Earth, acceleration of gravity = 9.8 m/s² (rounded)On Earth, 2.2kg of mass weighs (2.2kg) x (9.8 m/s²) =                                                              21.6 kg-m/s² = 21.6 Newtons.(That's about 4.85 pounds.)