Given $f(x)=−2x^2−4$ and $g(x)=5x+3$, calculate:

1. $g(−2)$ 

2. $f(−7)$ 

   Hint (a) and (b):

   Substitute the given value for $x$ into the indicated equation.

3. $f(g(−2))$ 

4. $f(g(1))$ 

   Hint (c) and (d):

   Substitute the entire $g(−2)$ into the equation $f(x)$ for x and evaluate. Follow the same guidelines for part (d).