Question 63130
1st: x+y<=18
2nd: 15x+20y<=300
4<=x<=15
2<=y<=14
------------
Solve 1st and 2nd for y to get:
3rd: y<=-x+18
4th: y<=(-3/4)x+15
-----------
Graph:
Draw vertical lines at x=4 and x=15
Draw horizontal lines at y=2 and y=14
Graph y<=-x+18
Graph y<=(-3/4)x+15
---------------
Cheers,
Stan H.