I just did the first one but I don't know is it correct
I believe it's graph C! I hope it will help you...
Answer:
current value = 21000(1 - 0.05)^n
Step-by-step explanation:
This is a standard depreciation formula where n is the number of years.
Answer:
1.2-0.8
Step-by-step explanation:
Add 0.4 and 0.8