Hibshman corporation bases its predetermined overhead rate on the estimated machine-hours for the upcoming year. at the beginning of the most recently completed year, the corporation estimated the machine-hours for the upcoming year at 10,000 machine-hours. the estimated variable manufacturing overhead was $6.82 per machine-hour and the estimated total fixed manufacturing overhead was $230,200. the predetermined overhead rate for the recently completed year was closest to:

Ahospital purchases a $500,000 magnetic resonance imaging (mri) machine that has a useful life of 9 years. the salvage value at the end of 9 years is $77,000. (a) write a linear equation that describes the value y (in dollars) of the mri machine in terms of the time t (in years), 0 ≤ t ≤ 9. (b) find the value, in dollars, of the machine after 6 years. $ (c) find the time, in years, when the value of the equipment will be $140,000. (round your answer to two decimal places.) yr