To find out how many acres Ms. Green planted with potatoes, we need to calculate \( \frac{3}{4} \) of her 30 acres of farmland.
Calculating \( \frac{3}{4} \) of 30 acres:
\[ \frac{3}{4} \times 30 = 22.5 \text{ acres} \]
However, none of the responses you provided represent 22.5 acres correctly. Please check the options or the information given about the fraction of farmland planted.
If the fraction was meant to be \(\frac{1}{4}\) instead, that would yield:
\[ \frac{1}{4} \times 30 = 7.5 \text{ acres} \]
Please double-check the fraction and let me know if you need further assistance!