Answer:
8 and 11
Step-by-step explanation:
Check the Wronskian determinant:

The determinant is not zero, so the solutions are indeed linearly independent.
Answer: 16,940 from interest.
Explanation: The cost of it is 28,000 and when you figure out what 5.5% of that is it will come to be 1,540. Next you multiply 1,540 by the 11 years so it would come to 16,940.