I hope it workssssssssssssssssssssss.
195xy is ur lowest common denominator
Answer: 
Step-by-step explanation:
Given
Marcos purchased a sailboat for 
Each year the boat will decrease in value by 
After 1 year it is

after another year it becomes

After
years it is


Answer:1. 70% 2. -40%
Step-by-step explanation:hope this helped :)