Answer:
8 + 8 + 8 + 8 = 4 × 8
4 + 8 = 12 (none)
4 × 4 × 4 × 4 × 4 × 4 × 4 × 4 = 4⁸
4 × 4 × 4 × 4 = 4⁴ (none)
8 × 8 × 8 × 8 = 8⁴
4 + 4 + 4 + 4 + 4 + 4 + 4 + 4 = 8 × 4 = 4 × 8
9.5m questions
12.2m answers