2) One ream of paper has a mass of 2.27 x 103 grams.- a) Is this an exact or inexact relationship? Explain. b) If this is an inexact relationship, how many significant figures are shown in this relationship? e c) Fill in the blank with the correct value. 1 ream of paper = grams of paper- d) In the space below, write the 2 conversion fractions (or conversion factors) that can be constructed from the equality in part 'c