Ответ:

  1. 7⁷ : 7⁵ = 7⁽⁷⁻⁵⁾ = 7² = 49.

  2. 10¹⁸ : 10¹⁴ = 10⁽¹⁸⁻¹⁴⁾ = 10⁴ = 10 000.

  3. 0,6⁹ : 0,6⁶ = 0,6³ = 0,216.

  4. (−1 1/8)⁵ : (−1 1/8)³ = (−1 1/8)² = (9/8)² = 81/64.