please help with this accounting question

Stoll Company's long-term available-for-sale portfolio at the start of this year consists of the following. Stoll enters into the following transactions involving its available-for-sale debt securities this year. January 29 Sold one-half of the Company B notes for $78,600. July 6 Purchased Conpany x bonds for $123,609. Novenber 13 Purchased Conpany z notes for $267,990. Decenber 9 Sold all of the Company A bonds for $518, 300 . Fair values at December 31 are B, $84,300;C,$604,800;X,$100,000; and Z,$288,000. Problem 15-3A (Algo) Part 1 and 2 Required: 1. Prepare joumal entries to record these transactions, including the December 31 adjusting entry to record the fair value adjustment for the long-term investments in available-for-sale securities. 2. Determine the amount Stoll reports on its December 31 balance sheet for its long-term investments in available-for-sale securities