To find the unit rate for 1 bag of chips, you can start from the given cost for 5 bags, which is $6.25.
To find the cost of 1 bag, divide the total cost for 5 bags by 5:
\[ \text{Cost per bag} = \frac{6.25}{5} = 1.25 \]
So, the unit rate for 1 bag of chips is $1.25.