Answer:
given,
g(x) = -x-4
so
g(5) = -5-4
= -9
Explanation:
it's from function.
A function in math is a like a machine that take an input from you and does something.
like here they asked x and they will return -x-4 .
g(5) means if x=5 then what is -5-4?(-9) for this function?