Montalvo Bionics showed the following alphabetized unadjusted trial balance at April 30, 2023: Other information: a. All accounts have normal balances. b. The furniture was depreciated using the straight-line method and had a useful life of five years and residual value of zero. c. The machinery was depreciated using the double-declining-balance method and had a useful life of 10 years and residual value of $28,500. d. The patent was purchased on November 2. 2022, and is expected to be used for 15 years, after which it will have no value. e. The balance in Prepaid Rent represents rent from June 1, 2022, to May 31, 2023. f. $6,900 of the note payable will be paid by April 30, 2024 . MONTALVO BIONICS Balance Sheet April 30, 2023