Answer:
$140.74
Explanation:
Assuming this is a decaying exponential function, we can find a model for the depreciation in the form of v = a(b^t)
At t = 0, we get 5000 = a(b^0), which gives us a = 5000
At t = 1, we get 4000 = 5000b, such that b = 4/5
Now that our function is defined as v = 5000(4/5)^t, we can plug in t = 16 to solve for the value of the piano.
v = 5000(4/5)^16, which is approximately $140.74.