A piece of equipment cost $85,000 new but despite 15% every 5 years. Find its value after 30 years.

A piece of equipment cost $85,000 new but despite (devaluates?) 15% every 5 years. Find its value after 30

years.

$$\\FV= 85000(1-0.15)^6\\\\ FV= 85000*0.85^6\\\\$$

$${\mathtt{85\,000}}{\mathtt{\,\times\,}}{{\mathtt{0.85}}}^{{\mathtt{6}}} = {\mathtt{32\,057.708\: \!828\: \!125}}$$

$32058  to the nearest dollar :)