Nivaar worked solution (AI-drafted; not reviewed by a licensed engineer)
Reference texts. A. S. Sedra & K. C. Smith, Microelectronic Circuits, 8th ed. (diodes ch. 4; MOSFET & BJT amplifiers ch. 5–8; MOS inverters ch. 13–14) — primary; C. K. Alexander & M. Sadiku, Fundamentals of Electric Circuits, 7th ed. (Thévenin equivalents, ch. 4) for the resistive-bridge question.