To find out how much Gabriel's pumpkin weighs, we need to add the weight of Marco's pumpkin to the additional weight Gabriel's pumpkin has.
Marco's pumpkin weighs 1.37 pounds, and Gabriel's pumpkin weighs 0.24 pounds more than Marco's pumpkin.
So, we calculate Gabriel's pumpkin weight as follows:
\[ \text{Weight of Gabriel's pumpkin} = \text{Weight of Marco's pumpkin} + \text{Additional weight} \] \[ \text{Weight of Gabriel's pumpkin} = 1.37 \text{ pounds} + 0.24 \text{ pounds} \] \[ \text{Weight of Gabriel's pumpkin} = 1.61 \text{ pounds} \]
Therefore, Gabriel's pumpkin weighs 1.61 pounds.