The equation that they have given is an absolute function meaning any outcome in this function will be POSITIVE no matter what.
For example
B(-6) = l-6 + 4l
B(-6) = l-2l or B(-6) = 2
YOUR ANSWER
B(-10) = l -10 + 4l
B(-10) = l-6l or B (-10) = 6
so therefore your answer is C. 6
The formula is
V (t)=V0(b)^t
V (t) the value of the assets after 5 (t) years ?
V0 current value of assets 600000
B=1-0.20=0.8
T 5 years
So the value of assets after 5 years is
V (5)=600,000×0.8^(5)=196,608
I can’t seem to look at the bottom two answers and the two ( A and B) are not correct. So you’re left with either C or D
B the answer is B - hope this helps you out