Please see the below and advise The scrap value of a machine at the end of its u

/in /by

Please see the below and advise
The scrap value of a machine at the end of its useful life is given by S(n)=C(1-r)n , where C is the original cost, n is the useful life of the machine in years, and r is the constant annual percentage of value lost. Find the scrap value of the following machine.
S=?

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