A laptop computer is purchased for 850$ . After each year, the resale value decreases by 30% . What will the resale value be after 4 years?

Question

I don't know how to do this

Answer 1

You can use the formula, y = P(v)^t, to calculate the answer.  y is the final resale value, P is the initial value, v is the adjusted rate, and t is the number of years.

 

y = 850(0.7)⁴

y = $204.085 = $204.09