Answer:$4650
Step-by-step explanation:
The cost that is recoverable is $30 per hour that was agreed as the hour to be spent in learning the soft ware. The sunk cost it's an irrecoverable cost that does influence decision making. When the agreed leaning cost of $30 per hr for 45hr of $1350 is deducted from the asking price of $6000 we have the $4650