Subtract -2x^2-4x from 2x^2-2x-5

Can you simplify 4/7? 24 points will be awarded!

Adriver from the university of florida women’s swimming and diving team is competing in the in ncaa zone b championships

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?