Answer:
d
Step-by-step explanation:
The sun is the primary source because without it there will be nothing like renewable or nonrenewable energy
C
4 x 4=16 and half of 4 is 2 so the answer is C)4
X=-1
(X-5)1/2+5=2
(X-5)1/2=2-5
(X-5)1/2=-3
(X-5)=-3 *2
X-5=-6