To solve the linear inequality \( Hy < 7 \), where \( H \) is a number greater than 0, you would divide both sides of the inequality by \( H \). This gives you:
\[ y < \frac{7}{H} \]
Therefore, the correct response is:
A. \[ y < \frac{7}{H} \] (y less than Start Fraction 7 over upper H End Fraction)