Please help with these four Webassign problems, thank you!

Solve the LP problem. If no optimal solution exists, indicate whether the feasible region is empty or the objective function is unbounded. HINT [See Example 1.] (Enter EMPTY if the region is empty. Enter UNBOUNDED if the function is unbounded.) Minimize c = 0.2x + 0.3y subject to 0.2x+ 0.1yz 1 0.15x+ 0.3y2 1.5 10X+ 10y280 xzmyzo -I8 Points] Solve the LP problem. If no optimal solution exists, indicate whether the feasible region is empty or the objective function is unbounded. HINT [See Example 1.] (Enter EMPTY if the region is empty. Enter UNBOUNDED if the function is unbounded.) Maximize and minimize p = x + 2y subject to x+y22 x+ys4 xySZ xyzZ Minimum: p: (X.y)=( ) Maximum: p: (x, y) =( ) Solve the LP problem. If no optimal solution exists, indicate whether the feasible region is empty or the objective function is unbounded. (Enter EMPTY if the region is empty. Enter UNBOUNDED if the function is unbounded.) Maximize p = 4x + 2y subject to 0.5x + 0.6y2 1.2 y513 x20,y20. w > -/4 Points] Solve the LP problem. If no optimal solution exists, indicate whether the feasible region is empty or the objective function is unbounded. HINT [See Example 1.] (Enter EMPTY if the region is empty. Enter UNBOUNDED if the function is unbounded.) Maximize p = x + y subject to x+2yz 10 u+usm 2x+ y210 x20,y20. p: (x.y)=( )