Ответ:

91

Объяснение:

1101001₂ = 1 * 2⁰ + 0 * 2¹ + 0 * 2² + 1 * 12³ + 0 * 2⁴ + 1 * 2⁵ + 1 * 2⁶ = 1 * 1 + 0 * 2 + 0 * 4 + 1 * 8 + 0 * 16 + 1 * 32 + 1 * 64 = 1 + 0 + 0 + 8 + 0 + 32 + 64 = 105₁₀

112₈ = 2 * 8⁰ + 1 * 8¹ + 1 * 8² = 2 * 1 + 1 * 8 + 1 *64 = 2 + 8 + 64 = 74₁₀

3C₁₆ = С * 16⁰ + 3 * 16¹ = 12 * 16⁰ + 3 * 16¹ = 12 * 1 + 3 * 16 = 12 + 48 = 60₁₀

1101001₂  - 112₈ + 3C₁₆ = 105₁₀ - 74₁₀ + 60₁₀ = 91₁₀