A. Hank made a mistake in Step 1. The first step needed to solve this correctly would be to add 9 to both sides of the equation. Hank subtracted 9 instead of adding 9.
To clarify, the initial equation is:
\[ 25 = \frac{x}{4} - 9 \]
To correctly isolate \(\frac{x}{4}\), you would need to add 9 to both sides:
\[ 25 + 9 = \frac{x}{4} \]
This simplifies to:
\[ 34 = \frac{x}{4} \]
Hank's Step 1 incorrectly presented it as \(16 = \frac{x}{4}\), which is not correct. After correcting Step 1, the next step would then involve multiplying both sides by 4 to solve for \(x\).