To find the scale factor, we can divide 12 by 8:
\[ 12 \div 8 = 1.5 \]
So, the scale factor is 1.5.
Now that we have the scale factor, we can use it to find the price of 12 apples. Since 8 apples cost $2, we will multiply the price of 8 apples by the scale factor to find the cost of 12 apples:
\[ \text{Cost for 12 apples} = \text{Cost for 8 apples} \times \text{Scale Factor} \]
\[ \text{Cost for 12 apples} = 2 \times 1.5 \]
Calculating that:
\[ 2 \times 1.5 = 3 \]
Therefore, the cost of 12 apples will be $3.
Here’s how the completion of the table would look:
| Number of Apples | Price | |------------------|-------| | 8 | $2 | | 12 | $3 |