A count reveals that NTS35 of banking supplies were used during November Mei-ling estimates that all of her banking equipment will have a useful life of 5 years or 60 months. Meil-ling's grandmother has decided to change interest of 6% on the note payable extended on November 16. the loan plus interest is to be repaid in 24 months. A count reveals that NTS35 of banking supplies were used during November Mei-ling estimates that all of her banking equipment will have a useful life of 5 years or 60 months. Meil-ling's grandmother has decided to change interest of 6% on the note payable extended on November 16. the loan plus interest is to be repaid in 24 months