Solve the linear programming problem. Minimize and maximize z=50x+40y Subject to 2x+yx+yx+2yx,y6448560 Select the correct choice below and fill in any answer boxes present in your choice. What is the minimum value of z? A. z= (Type an integer or a fraction.) B. There is no minimum value of z Select the correct choice below and fill in any answer boxes present in your choice. What are the coordinates of the corner point where the minimum value of z occurs? A. The coordinates are (Type an ordered pair.) B. There is no minimum value of z Select the correct choice below and fill in any answer boxes present in your choice. What is the maximum value of 2 ? A. z= (Type an integer or a fraction.) B. There is no maximum value of z. Select the correct choice below and fill in any answer boxes present in your choice. What are the coordinates of the cornec point where the maximum value of z occurs? A. The coordinates are (Type an ordered pair) B. There is no maximum value of z