If A(x, y) and B(2x, 2y) are points on a grid, the coordinates of the midpoint of line segment AB are:

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?