To find the cost \( c \) of each bag of lemons, we can set up the equation using the total cost and the number of bags.
Given:
- Total cost for 5 bags of lemons = $19.75
- Number of bags = 5
We can express the total cost in terms of the cost per bag:
\[ 5c = 19.75 \]
To find the cost per bag \( c \), we can solve for \( c \) by dividing both sides of the equation by 5:
\[ c = \frac{19.75}{5} \]
So, the complete equation that models the cost \( c \) of each bag of lemons is:
\[ 5c = 19.75 \]