y 11x+11y>121 11x+11y<121 x+y≥11 x+y≤11 x y 10x+3y<30 3x+10y≤30 10x+3y≤30 3x+10>30 x y x+2y≤12 6x-12y≤72 6x+12y≥72 x+2y<12 x y x-2y≥18 x+2y<18 x+2y≥18 2x+y≥18 x y 3y+5x>15 3y+5x≥15 5x+3y≥15 5x+3y>15 x y x+y≥8 x+y≥9 x-y≥8 x-y>9 x y 11x+11y>121 11x+11y<121 x+y≥11 x+y≤11 x y 10x+3y<30 3x+10y≤30 10x+3y≤30 3x+10>30 x y x+2y≤12 6x-12y≤72 6x+12y≥72 x+2y<12 x y x+2y>18 x+2y<18 x+2y≥18 2x+y≥18 x y 3y+5x>15 3y+5x≥15 5x+3y≥15 5x+3y>15 x y x+y>9 x+y≥9 x-y≥9 x-y>9 x |