Question

A piece of equipment originally costs 120000. its value decreases at a rate of 10 percent per year Estimate its value after six years

Answer 1

It's more about focusing on what you have left after each year. If the value decreases by 10%, then you have 90% of the original after each year. So you want 90% of your previous value, 6 times. Any idea how to put that into an equation?