a computer repair company charges an hourly labor rate of $40 in addition to. the cost of oarts needed to. fic a computer. A sales tax rate of 5.5% is assessed on the cost of parts but not on the labor cost nancy had gee computer repaired by the company and the total bill came to $183.30!if it took 3. hours to. do the repair what was the cost of parts needed ti fix her comouter rounded to. the nearest whole. dollar write an equation and explain how yiu use it to find your answer