Hyphens, En Dashes, Em Dashes

Q. I’m seeing this particular use of hyphens: low-to-moderate income families. I don’t think it’s correct, but it’s becoming so common that I’m beginning to wonder if I missed something.

A. Chicago style renders this phrase“low- to moderate-income families,” and others hyphenate it as “low-to-moderate-income families,” but this level of hyphen usage is subtle enough that it’s not surprising that you don’t find it consistently applied.