5 a to b - 8 a to b - 78 to be

What is the answer to this problem 7 * 5/6

What is the frequency of the sinusoidal graph?

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?