Rhonda bought a new laptop for $800. the laptop depreciates, or loses, 20% of its value each year. the value of the laptop at a later time can be found using the formula a=p(1−r)t ap 1 r t , where p is the original value, r is the rate of depreciation written as a decimal, and t is the number of years since it was purchased. what will the laptop be worth in two years?