1. (10 points) Convert decimal number 255 to hexadecimal representation and show your approach. 2. (15 points) Convert floating-point binary sequence 1111000.1010 to hexadecimal floating-point. Show your approach. 3. (15 points) Convert floating-point binary sequence 111000.101 to octal floating-point. Show your approach. 4. (15 points) Create the timing diagram for a three-input AND gate. 5. (15 points) Create the timing diagram for a three-input OR gate. 6. (15 points) Draw the block diagram for a 4-1 MUX; create the truth table for that. 7. (15 points) Complete the truth table for the circuit in Week3 lecture slide 27