Which age group of this set of numbers has twice as many people as another age group?

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?

What are two numbers that have a sum of 15?

Which angle has the same measure as the dehedral angle formed by the orange face and the purple rectangle