Hi there!
To find the volume of a rectangular prism, we need to multiply the dimensions together.
12×8×4 = 384
So, the answer is

Hope this helps!
Do NOT search the link they WILL hack you
The rule for multiplying similar bases with exponents:
(a^b)(a^c)=a^(b+c)
In this case we have:
(5^-2)(5^-1)
5^(-2-1)
5^(-3)
The rule for negative exponents:
a^(-b)=1/(a^b)
So in this case:
5^(-3) is equal to
1/(5^3)
1/125
Is there supposed to be a picture I’m sorry I don’t see it
Answer:
The answer would be f(a)=-1
-AC I hope this helps<3