Question: Deondra bought 9 fish sticks for $18.90. How much would it cost for 17 fish sticks?
1. **State the problem:** Deondra bought 9 fish sticks for 18.90. We want to find the cost for 17 fish sticks.
2. **Formula:** To find the cost per fish stick, use the unit rate formula:
$$\text{Cost per fish stick} = \frac{\text{Total cost}}{\text{Number of fish sticks}}$$
3. **Calculate the cost per fish stick:**
$$\frac{18.90}{9} = 2.10$$
So, each fish stick costs 2.10.
4. **Find the cost for 17 fish sticks:**
$$17 \times 2.10 = 35.70$$
5. **Answer:** The cost for 17 fish sticks is 35.70.