Answer:
I will accept the offer if the price per painting is $56,312.41 or higher.
Explanation:
We will calculate the present value of the other option which is, selling our painting as a freelancer.
C 315,000.00
time 5
rate 0.2
PV $942,042.8241
Now, we subtract the signing bonus of 100,000
942,042.83 - 100,000 = 842,042.83
And solve for the annual proceeds from the painting we need to equalize the opportunity cost:
PV 842,042.83
time 5
rate 0.2
C $ 281,562.03
Now, we divide by the 5 painting per year:
$281,562.03 per year / 5 painting per year = $56,312.41