a city that had a population of 45606 decreased in population to 42890. what was the percent of decrease in population of this city, to the nearest tenth?

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?