1280 minus 796

What is the value with a place of tenths in 907.456 1) 0 2) 6 3) 4 4) 5

Which of the following is true for the relation f(x)=2x^2+1

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?