input...1. meet profit=4% & vegee profit=5%
2...sale=4,200$
3...meet profit=vegee profit+51$
x+y=4,200$...or y=4200-x
vegee profit=5% av y=0.05y
meet profit=4% av x=0.04x
meet profit=vegee pro+51$, so 0.04x=0.05y+51
0.04x=0.05*(4200-x) +51....or 4x=5*(4200-x)+5100
4x+5x=21,000+5100
9x=26,100, x=26,100/9...x=2900...(x=meet)
y=4200-x=4200-2900...y=1300