To find the price per foot of the butcher paper, first, convert the length of the roll from yards to feet. There are 3 feet in a yard, so:
\[ 3 \text{ yards} \times 3 \text{ feet/yard} = 9 \text{ feet} \]
Now, you can calculate the price per foot by dividing the total price of the roll by the total length in feet:
\[ \text{Price per foot} = \frac{\text{Total price}}{\text{Total feet}} = \frac{8.64}{9} \]
Calculating that gives:
\[ \frac{8.64}{9} \approx 0.96 \]
Thus, the price per foot is approximately $0.96.