To determine the cost of a single pencil, we can look at the cost of 12 pencils from the table, which is $3.00.
To find the cost for 1 pencil, we divide the total cost by the number of pencils:
\[ \text{Cost per pencil} = \frac{\text{Total Cost}}{\text{Quantity}} = \frac{3.00}{12} = 0.25 \]
So, the cost for 1 pencil is $0.25.