Answer:
1. 6 rabbit costumes. With 1 yard of blue left and 0.25 yards of pink left.
2. Gail uses up the white fabric first because the white fabric can only make 6 rabbit costumes while the blue and white can make 7
Step-by-step explanation:
Gail has, 10 of white, 7 of blue, 1.75 of pink
One rabbit needs, 1.5 of white, 1 of blue, 0.25 of pink
10/1.5 = 6 with remainder
7/1 = 7
1.75/0.25 = 7