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.) Maximize p = x + y subject to x + 3y s 4 3x + ys 4 x 20, y 2 0. P = ( x, y ) = Submit Answer /6 Points] DETAILS MY NOTES 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 = 3x + y subject to 2x - 9y s 0 9x - 2y 20 x+ ys11 x 2 0, y 2 0. 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. HINT [See Example 1.] (Enter EMPTY if the region is empty. Enter UNBOUNDED if the function is unbounded.) Maximize p = x 2y subject to X+3y$7 x4y50 10x5y20 x20,y20. p: (x, y) =( ) -/6 Points] 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 + By subject to 0.4x + 0.2y52 0.01x + 0.02ys 0.1 8x + 8ys48 x 2 0, y 2 0. w &gt