(a) Prepare Journal Entries for Sales and Purchases (Without Discounts) Rob Corp is a lumber yard on Angel Island. Apr, 15 Sold lumber on an account to Hard Hat Construction, $500,000. The inventory subsidiary ledger shows the cost of this merchandise wass p 19 Purchased lumber on account from LHP Company $100,000. May 10 Collected in cash the $500,000 accounts recevable from Hard Hat Construction May 19 Pad the $100,000 awed to LHP Compary. Dec. 31 RobCo p pe sonned counted the inventory on hand and dete m ned its cost to be $120 00 The oco unting records, lo ever, ndicate nventory of $140 00 knd a cost o goods sold of $9 0 0 T he pl count of the inventory as ebserved by t e per v s sud ters and t is considered sca c correct. Prepare jou al en nes to recor the above trsnsactions and everts n the accountr record o Rob Corp the company uses perpetus system (Credit account tit es a are automatically inde te w en the amounts entered. Do not ind ent manuel Date Account Titles To recard salea.) (To record cost of goods sold.)