Ascience student wants to study how fast an ant walks which quantity makes the most sense for his study miles per day inches per second ounces per hour seconds per minute

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?