eshalkhan81 eshalkhan81 01-10-2020 Mathematics contestada Kelly had 3/ 4 of a tank of gas at the beginning of the week. At the end of the week, Kelly had 1/ 8 of a tank left. a) Did Kelly use more or less than 1/ 2 of a tank? Explain. b) How much more or less than 1 /2 of a tank did Kelly use?