Answer:
$50.56
Explanation:
First- Calculate the number of dishes ordered and their prices-
Parents order-
Sirloin Steak Fajitas: $14.99 x 2
Little Sister and little brother-
BBQ Chicken Platter: $11.99
Your order-
Shrimp Tacos: $8.59
Add the amount-
14.99 + 14.99 + 11.99 + 8.59 = 50.56
Total bill 50.56