Please help me with these problems!! Thanks very much!

Give a Boolean algebra expression for the following circuit. Do not simplify the expression-it should have one operator for each gate below. For each of the following Boolean Algebra expressions, give a truth table and draw a logic circuit. a) XY + X'Y' b) X + YZ' + X'Z In class, we developed circuits for some of the parts of a digital display. You are to develop circuits for the left bars (labeled 'b' and 'e' in class): The 'b' bar should be on when the data is 0, 4, 5, 6, 8 and 9. The 'e' bar should be on when the data is 0, 2, 6 and 8. Recall that we have "don't care" conditions for values in the range 10 - 15. a) Give Karnaugh maps of these functions and circle the maximal groups of positive terms. b) Give Boolean algebra expressions derived from your Karnaugh maps. c) Draw circuit diagrams based on your expressions that would implement the desired functions