Answer:
y=2x
Step-by-step explanation:
Y=kx
12=k6
12 divided by 6 to get 2
and 2=k
Answer: (A) CDD
if D=C^-1
then
C D D = (C C^-1) D = I D = D
(where I is the identity matrix)
0.125 liters per day
0.5/4=.125