Asap because i don’t want to mess this mastery challenge up. i think i have the right answer but i want to confirm

Question 5 spring semester final exam math evaluate

What’s the volume of the triangular prism?

If (x + 8) is a factor of f(x), which of the following must be true? both x = –8 and x = 8 are roots of f(x). neither x = –8 nor x = 8 is a root of f(x). f(–8) = 0 f(8) = 0