Answer:
Date                Account title                                      Debit                Credit 
12/31/2019      Lease Receivable                           $175,934
                       Cost of Goods sold                         $120,000
                       Sales Revenue                                                        $175,934
                       Inventory                                                                  $120,000
Date                Account title                                      Debit                Credit 
12/31/2019      Cash                                                 $40,800
                        Deposit Liability                                                        $40,800
The rental amount is constant and is made on the first day of the lease period so this is an annuity due. 
As the collectability is probable, you need to find the present value of this lease:
= 40,800 * Present value of annuity due factor, 5 year, 8%
= 40,800 * 4.3121
= $175,933.68
= $175,934