Iforget how to subtract, so can you ?

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?

What value is a discontinuity of x squared plus 8 x plus 4, all over x squared minus x minus 6?

Which of the following circles have their centers in the third quadrant?