hard to solve... please help me.

3. The following shows the truth table of an encoder with priority with bits closer to MSB. Inputs Outputs 0 0 01 00 1 0 01 0 1 1 01-10 1) (5 points) Draw the truth table of an encoder with priority with bits closer to L.SB. 2) (10 points) Write logic equations for 1). 4. (10 points) Draw a logic diagram for a two bit subtractor based on CLA. You can use any kind of gates that you've learned in class. Use as few gates as possible. 5. (5 points) Red-mark a critical path for 2. Write many gates does the critical path has