Can you pls help me check my answers. Its about physics. I already solved all of them but im not sure if i solved them correctly can you pls help me understand 1-5? Thank you

1. The electric force between two charges is 293 N. What would the new force be if both charges were multiplied by a factor of 9? 2. The electric force between two charges is 2,526 N. What would the new force between them be if one of the charges is multiplied by a factor of 3? 3. The gravitational force between two masses is 4,520 N. What would the new force between the masses be if the distance were multiplied by a factor of 5? 4. The electric force between two charges is 282 N. By what factor would the new force change if both charges were multiplied by a factor of 4? 5. By what factor would the new force between two masses be multiplied if mass 1 were multiplied by a factor of 2 and mass 2 were multiplied by a factor of 1