a company used straight-line depreciation for an item of equipment that cost $17,750, had a salvage value of $4,400 and a six-year useful life. after depreciating the asset for three complete years, the salvage value was reduced to $1,775 but its total useful life remained the same. determine the amount of depreciation to be charged against the equipment during each of the remaining years of its useful life: multiple choice $3,100. $6,792. $3,960. $1,335. $4,400.