the mass of sun is about 2x10^27 metric tons, or 2x10^30 kilograms. How many kilograms are in one metric ton

If f(x)=-x^2+6x-1 and g(x)=3x^2-4x-1,find(f+g)(x)

Me find the value of x each figure.

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?