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Answer :

more or less 5.6 sections

Explanations:

[tex]\frac{23.8}{4.2}\approx5.6666667[/tex]

Since in 1 section, she wants 4.2 yards and she has 23.8 yards in total it means she'll need 23.8 yards / 4.2 yards

Since the number is not exact in the answer I gave you I truncated it.