how can i add the missing amounts in problem 2? and what is the process?

Problem 1: Sales and Purchases Transactions RIVAS COMPUTERS AND REPAIRS Company completed these merchandising transactions in the month of April 20x1. At the beginning of April, the ledger of RIVAS showed Cash of $9,000 and Common Stock of $9,0 Apr. 2 Purchased merchandise on account from Louis Supply Co. $8,700, terms 2/10, n/30. 4 Sold merchandise on account $6,000, terms 2/10, n/30. The cost of the merchandise sold was $3,700 Paid $200 freight on April 4 sale. Received credit from Louis Supply Co. for merchandise returned $400 11 Paid Louis Supply Co. in full, less discount. 13 Received collections in full, less discounts, from customers billed on April 4 14 Purchased merchandise for cash $4,700 16 Received refund from supplier for returned merchandise on cash purchase of April 14, $500. 18 Purchased merchandise from Cascade Distributors $5,500, terms 2/10, n/30 20 Paid freight on April 18 purchase $180. 23 Sold merchandise for cash $8,300. The cost of the merchandise sold was $5,580. 26 Purchased merchandise for cash $2,300 27 Paid Cascade Distributors in full, less discount Made refunds to cash customers for returned merchandise $180. The returned merchandise had a cost of $120 29 30 Sold merchandise on account $3,980, terms n/30. The cost of the merchandise sold was $2,500. RIVAS Company's chart of accounts includes: Cash, Accounts Receivable, Inventory, Accounts Payable, Common Stock, Sales Revenue, Sales Retuns and Allowances, Sales Discounts, Cost of Goods Sold and Freight-Out Problem 2: Missing amounts Presented below is financial information for two different companies. Bell Nova Company Company Sales revenue Sales discounts Sales returns Net sales Cost of goods sold Gross profit Operating expenses Income from operations Other revenues (expenses) Net income $ (e) $180,000 2,000 2,500 5,000 200,000 171,000 103,000 80,000 51,000 49,000 45,000 tef 4,000 Instructions: (a) Determine the missing amounts above