Let's break down the calculation step by step:

Prices and Quantities:

1. Shrimp: $12.99 per pound, and Felecia orders 2 pounds.

   • Cost of shrimp: $12.99 \times 2 = 25.98$

2. Blue Crabs: $16.50 per dozen, and Felecia orders 6 blue crabs.

   • Since 6 blue crabs are half of a dozen, the cost of blue crabs is: $\frac{16.50}{2} = 8.25$

3. Red Snapper Fillets: $7.79 per fillet, and Felecia orders 3 fillets.

   • Cost of red snapper fillets: $7.79 \times 3 = 23.37$

Total Cost Before Fees:

Now, let's sum up the costs: $25.98 + 8.25 + 23.37 = 57.60$

Convenience Fee:

The seafood market charges a $5 convenience fee: $57.60 + 5 = 62.60$

Amount Paid and Change:

Felecia pays with a $100 bill. To find the change, subtract the total cost from the amount she paid: $100 - 62.60 = 37.40$

Answer:

Felecia should receive $37.40 in change.

Would you like any more details on this? Here are some related questions:

1. How would the change differ if the crabs were priced per crab instead of per dozen?
2. What if Felecia ordered an extra pound of shrimp? How would the total change?
3. How much would Felecia pay if the market waived the convenience fee?
4. What percentage of the total price does each item represent?
5. How much would Felecia have paid if she ordered a dozen crabs instead?

Tip: When handling money calculations, always include any additional fees before calculating the total cost.