Unit of measurement . a punk/disco band , was signed up to play a benefit concert for new year's eve. they started at 6: 00 pm on new years eve and managed to play until 9: 00 am in the morning of janurary 2. interestingly , they are paid by the minute so they need to know how long they played in minutes. which type of problem best expemplifies this question? . a. order of magnitude . b. unit conversion. c. significant figures. d. estimation