Question

A.

Answer 1

Answer:

The answer is D.

Step-by-step explanation:

You have to add both functions together :

$f(x) = 25 - {x}^{2}$

$g(x) = 5 - x$

$(f + g)(x) = 25 - {x}^{2} + 5 - x$

$(f + g)(x) = 30 - {x}^{2} - x$

$(f + g)(x) = - {x}^{2} - x + 30$