please i need help with question 3.1, 3.2 , 4.1, 4.2

2.3 (5pts) Represent number. Show all work for full credit. 2.4 (Spts) Represent -128 as an 8-bit two's-complement number. Show all work for full credit Page 3 3.1 (5pts) Draw a diagram showing a two-input NAND constructed from transistors. 3.2 (5pts) For the 1-bit memory from a multiplexor design, if the control is 1, the input is 1, the current output is 0. what will the new output be? Page 4 4.1 (10pts) Draw the diagram of a S-R edge-triggered flip- flop. 4.2 (5pts) Draw the diagram for a Half-Adder