Michael J. answered 10/31/15
Tutor
5
(5)
Applying SImple Math to Everyday Life Activities
f(c) means that you evaluate f(x) when x=c. Also, 3√ means the cube-root.
Assuming you mean f(x) = 3√(x + 3):
g(-30) = 3√(-30 + 3)
= 3√(-27)
= -3
Try the last three on your own.