For marcy's nutrition class, she is supposed to keep track of her weight loss or gain for seven weeks, as shown in the table. when she started the class, marcy weighed 138.4 pounds. week 1: -1.7 week 2: -0.8 week 3: +1.1 week 4: -0.6 week 5: +1.3 week 6: -1.0 week 7: +0.9 marcy lost the most weight in week marcy gained the most weight in week over the course of the seven weeks, marcy weight