Question

A certain forest covers an area of 2100km2. Suppose that each year this area decreases by 5%. What will the area be after 14 years?

round your answer to the nearest square kilometer

Answer 1

1024 km²

Explanation:

Divide 2100 by 20 (which is equivalent to multiplying by 5/100)

Then subtract the number from total area of forest in hand. The answer becomes the new area. Then repeat the process another 13 times to reach the area left after 14 years and round it off.