To find the total weight of the two pumpkins, simply add their weights together:
First pumpkin: 5.7 pounds
Second pumpkin: 7.1 pounds
Total weight = 5.7 + 7.1
Now, performing the addition:
5.7 + 7.1 = 12.8
So, the two pumpkins weighed a total of 12.8 pounds.