Answer:
C. 24 meters
Step-by-step explanation:
Given:
Total length of fabric required for the costume = 56.6 m
Length of fabric Zhou already has = 15 m
Length of fabric James just purchased = 17.6 m
To find how much more length of fabric is required to make the complete costume.
Solution:
<em>Let the length of fabric in meters still required be</em> = 
<em>The total length can be given as :</em>
⇒ 
⇒ 
The total fabric required = 56.6 m
So, the equation to find
will be:

Subtracting both sides by 32.6

∴ 
Thus,<u> 24 meters</u> of fabric is still required to make the costume.