Riverbed Company sells hot tubs at an average price of $1,900 and also offers to each customer a separate 5-year warranty contract for $230 that requires the company to perform periodic services and to replace defective parts. During 2020, the company sold 650 hot tubs and 480 warranty contracts for cash. It estimates the 5-year warranty costs as $49 for parts and $98 for labor and accounts for warranties separately. Assume sales occurred on December 31, 2020, and straight-linerecognition of warranty revenues occurs. (a) Record any necessaryjournal entries in 2020. (If no entry is required, select "No Entry "for the account titles and enter Ofor the amounts. Credit account titles are automatically indented when amount is entered. Do not indent manually.) Account Titles and Explanation Debit Credit