OFFERING 90 POINTS!! Corrine would like to build the garden of her dreams. She needs 13 cubic feet of soil containing 17% clay. She has two types of soil that she can combine to achieve this: soil with 20% clay and soil with 15% clay. How much of each soil should she use?

1. Set up a system of equations to address the information. Declare the meaning of all variables.
2. Solve the system using the method you think best.
3. Conclusion:
- If your answer is a decimal, tell whether you would round it? Discuss your reasoning.
- Reflect on the importance of your findings in real-life situations.