PROBLEM SOLVING: 19.) 4.4 meters 20.) 8.205 and 8.211 21.) 2,549 22.) see image attached to this answer. 23.) 2.36 rounded to the nearest hundredth is 2.4, 2.09 rounded to the nearest hundredth is 2.1 < 2.4 so 2.1 is closer to 0. 24.) 1/3 25.) Ruby started with $84. Equation: m = (18 + 4 + 30) + 32