Question

A geologist is keeping track of the erosion of an island. The land of the island is changing at a rate of -14 inches per year. How long will it take for the change in length of the island to be -168 inches?

Answer 1

It will take 12 years to reach from -14 to -168.

Explanation:

Just multiply 14 time 12 and that's how to get the answer. Make sure to change it as negative, of course.