a cleaning solution uses 5 cups of soap for every 2 cups of vinegar. if emery put 4 cups of soap in a container how many cups of vinegar must she use

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?

Ijust need these 2 questions answered (the second pic is just confirmation i'm not confident in that answer)

Which will form a composite function?