List of C Sharp Kata to Update

The following kata needs to fixed to enable C# 7.3/8.0. Any help will be appreciated.

1. Aurecchia Mathematical question chapter 1
2. Basics 07: Calculate Sin(x) - too easy?
3. Count the likes
4. Create a simple Class at Runtime
5. Dictionary Merge
6. Fibonacci
7. Fibonacci sequence with Linq
8. Graphics 04: Complete Function Grapher (~15 Lines of Code?!)
9. Is number a palindrome?
10. Leap year
11. Linear equations N x M, complete solution space, fraction representation
12. Number Zoo Patrol
13. Palindrome chain length
14. Polygon Orientation
15. Reflection #2 - Give me all methods
16. Reflection #3 - Add the member-results
17. Reflection #4 - Complete-Invoke
18. RunTime Compiler
19. Simple Fun #174: Unlucky Number
20. Simplexer
21. String -> N iterations -> String
22. To buy or not to buy
23. Whos the TIC TAC TOE champion?