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Math·Algebra·Linear equations in two variables

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Kai used fabric measuring $4$ yards in length to make each costume for a school play. The relationship between the number of costumes that Kai made, $x$, and the total length of fabric that he purchased $y$, in yards, is represented by the equation $y-4x=5$. What is the best interpretation of $5$ in this context?

A

Kai made 5 costumes.

B

Kai purchased a total of 5 yards of fabric.

C

Kai used a total of 5 yards of fabric to make the costumes.

D

Kai purchased 5 yards more fabric than he used to make the costumes.