Question 1065189
Let {{{ t = 0 }}} to find value starting off
{{{ S(0) = 800000*.9^0 }}}
{{{ S(0) = 800000 }}}
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{{{ S(1) = 800000*.9^1 }}}
{{{ S(1) = 720000 }}}
and
{{{ 800000 - 720000 = 80000 }}}
{{{ 80000 / 800000 = .1 }}}
10% depreciation
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{{{ S(5) = 800000*.9^5 }}}
{{{ S(5) = 800000*.5905 }}}
Solve next two like the 1st one