Final answer:
The solution region for the system of inequalities is in the lower left section of the graph.
Step-by-step explanation:
The solution region for the system of inequalities modeled by this situation is represented by the arrow pointing to the lower left section of the graph.
To determine the solution region, we need to consider the constraints given. Jenna wants to raise more than $108, so the total amount she earns, represented by the equation 6b + 9n, needs to be greater than 108.
She also wants to sell at least 16 bracelets and necklaces, so the total number of bracelets and necklaces sold, represented by the equation b + n, needs to be greater than or equal to 16.
Combining these two inequalities and graphing them, we find that the solution region is in the lower left section of the graph.