Complete the chart below by filling in the key name, number of sharps or number of flats.

Answer:
1st: C major (or its relative minor, A minor, but I think its about major scales so just write C major)
2nd: 1 sharp
3rd: F major
5th: 4 flats
7th: B flat Major
8th: 3 flats
9th: B Major
10th: D flat Major
Explanation: