Which is sell and purchase price on black market. Also does black Market only sell seeds or actually fruit. Also do B improvements score each round after you get them
Page 9: it's the sale/purchase price. So for meat (1/2), you sell for 1, purchase for 2.
You can only sell/buy the actual fruit in the marketplace.
Page 8: "improvement cards B are activated at the end of the game." So, no they only score once at game end.