question 13 buyers are willing to purchase original paintings for $1000, and indistinguishable first-copies for $200. sellers are willing to sell original paintings for $900 and first-copies for $150. buyers believe that 50% of the paintings in the market are first copies. buyers cannot distinguish between original paintings and first-copies, but sellers know with absolute certainty whether the art that they own is an original or a first copy. what is the average price buyers are willing to pay for a painting?