Answer:
historical cost is $69,670
Explanation:
Given data
market value = $57,320
net unrealized loss = $12,350
to find out
historical cost
solution
we have given market value and net unrealized loss is $12,350 so
So that historical cost of marketable securities debt is sum of both market value and net unrealized loss
historical cost = market value + net unrealized loss
put value we get
historical cost = $57320 + $12350
historical cost = $69,670