To determine how much change Felecia should receive from her $100 bill, we need to calculate the total cost of her order and subtract that from $100.

Step 1: Calculate the cost of each item

• Shrimp: Felecia ordered 2 pounds of shrimp at $12.99 per pound: $\text{Cost of shrimp} = 2 \times 12.99 = 25.98 \, \text{USD}$

• Blue Crabs: Felecia ordered 6 blue crabs, and the price is $16.50 per dozen (12 crabs). To find the price for 6 crabs, we calculate half of the price for a dozen: $\text{Cost of 6 blue crabs} = \frac{16.50}{2} = 8.25 \, \text{USD}$

• Red Snapper Fillets: Felecia ordered 3 red snapper fillets at $7.79 per fillet: $\text{Cost of red snapper fillets} = 3 \times 7.79 = 23.37 \, \text{USD}$

Step 2: Add the convenience fee

The market charges a convenience fee of $5 per order: $\text{Convenience fee} = 5 \, \text{USD}$

Step 3: Calculate the total cost of the order

Now, we sum all the individual costs: $\text{Total cost} = 25.98 \, (\text{shrimp}) + 8.25 \, (\text{blue crabs}) + 23.37 \, (\text{red snapper fillets}) + 5 \, (\text{convenience fee})$ $\text{Total cost} = 62.60 \, \text{USD}$

Step 4: Calculate the change

Felecia paid with a $100 bill, so the change she should receive is: $\text{Change} = 100 - 62.60 = 37.40 \, \text{USD}$

Thus, the correct answer is: $\boxed{B. 37.40}$

Would you like further details or have any questions?

Here are some related questions:

1. How would the change be different if Felecia ordered an additional pound of shrimp?
2. What if the convenience fee was 10% of the total instead of a flat $5?
3. How much would 12 blue crabs cost instead of 6?
4. What if Felecia only ordered red snapper fillets and no other items?
5. How would the total change if the price per pound of shrimp increased by 10%?

Tip: Always double-check the units (e.g., per pound, per dozen) when calculating the cost from a price list.