1. 6 * 2 = 12
2. 12 : 3 = 4
3. 4 * 9 = 36
4. 7 : 4 = 1.75
5. 100 - 36 = 64
6. 64 - 39 = 25
7. 25 + 1.75 = 26.75
Ответ: 26.75