Answer:
$71,716,960
Explanation:
The total initial cost of the copper mine = $50 million paid for exploration and extraction rights of the land + $15 million in exploration and development costs + restoration costs ???
restoration costs = expected monetary value x PV factor
EMV = ($5 million x 40%) + ($10 million x 60$) = $2 million + $6 million = $8 million
PV factor (i = 6%, n = 3) = 0.83962
restoration costs = $8 million x 0.83962 = $6,716,960
Total initial cost of the mine = $50,000,000 + $15,000,000 + $6,716,960 = $71,716,960