Answer:
Gail will need 12 yards of white fur, 8 yards of blue striped and 2 yards of the pink felt.
Step-by-step explanation:
We are given that,
The amount of yards for making one costume of different fabrics are,
White fur fabric =  =
 =  yards
 yards
Blue striped fabric = 1 yard
Pink felt for ears =  yards.
 yards.
So, we have,
The amount required to make 8 costumes are,
White fur fabric =  = 3×4 = 12 yards
 = 3×4 = 12 yards
Blue striped fabric = 1×8 = 8 yards
Pink felt for ears =  = 2 yards.
 = 2 yards.
Thus, Gail will need 12 yards of white fur, 8 yards of blue striped and 2 yards of the pink felt.