F.4 一條maths10分 linear programm

10a
(2/5)x+(1/5)y≤10 __&
(3/5)x+(4/5)y≤24 __&
x ≥ 2 __&
x ≤ y/3 __&
x≥0 __&
y≥0

2x+y≤5 __&
3x+4y≤120 __&
x ≥ 2 __&
3x ≤ y __&
y≥0