A watermelon is balanced by a dog, a pumpkin a flowerpot, and a baseball as show below. Which statement or statements are true?

Answer:
Both A and B are true.
Explanation:
Statement A is The mass of a watermelon is equal to the mass of the flowerpot, baseball, dog and pumpkin combined.
Statement B is The weight of a watermelon is equal to the weight of the flowerpot, baseball, dog and pumpkin combined.
Both statement A and B are true.