Use the following scenario to answer the question below: when the new book units of fire was released, jonathan decided to read it in one sitting for his book report. he started at 11: 00 a. m. on saturday morning and read until 8: 00 p. m. that night, for a total of 9 hours. for school, however, he needed to record the exact number of minutes he spent reading. what sort of problem best exemplifies this question? a. order of magnitude b. unit conversion c. significant figures d. estimation