Sarah family went to chick Fil a and spent $32.83. Her mom and dad got the meals that cost $8.99 each, and her and her siblings each got a meal that cost $4.95 each. What would equation look like

How to do this , and can some one explain

Which one ? is the answer and how to find this answer

Three baby penguins and their father were sitting on an iceberg 0.50.50, point, 5 meters above the surface of the water. the father dove down 4.74.74, point, 7 meters from the iceberg into the water to catch dinner for his kids. what is the father penguin's position relative to the surface of the water?