How can you find f(2) if f(x)=−3x^2−7?

Lorne subtracted 6x3 – 2x + 3 from –3x3 + 5x2 + 4x – 7. use the drop-down menus to identify the steps lorne used to find the difference.

The number of fish in a lake can be modeled by the exponential regression equation y=14.08 x 2.08^x where x represents the year

If f(x)=x+7 and g(x)=1/x what is (fog)(x)