Question 1136233
5x+4y<=150
y<0.5x
Therefore, 5x+2x<150 now less than, not equal to
7x<150
x < 21
105+4y<=150
4y<=45
y<=11
(21, 11) works for the first inequality but not the second.
(21, 10) works for both.  Cost is $105+40 or $145.