Which weighs more: a watermelon that weighs 3.4 kilograms or a baby that weighs 9 pounds? Explain your reasoning. Note: 1 pound is about 0.45 kilograms.
1 pound is about 0.45 kilograms. So there are 3.4 kilograms (3400 grams) which will be 7.50 lbs rounded after converting. 7.50 pounds is less than 9 pounds.