#### Explanation:

Let's make this into a fraction in order to find the unit price, which is in the form of $/ kg. $\left(\frac{9.05}{5}\right)$, where 9.05 represents the price of the 5kg bag ($9.05), and 5 represents the number of kilograms,

Now, divide:

$\left(\frac{9.05}{5}\right)$ = 1.81

Therefore, the unit price is 1.81.

Thanks to @Parzival S for checking and correcting this answer.