variables x1 'Number of Football tropies',
          x2 'Number of Soccer tropies',
          profit;

equations wood,plaques,footballs,soccerballs,obj;

wood..
  4*x1 + 2*x2 =l= 4800;

plaques..
  x1 + x2 =l= 1750;

footballs..
  x1 =l= 1000;

soccerballs..
  x2 =l= 1500;

obj..
  profit =e= 12*x1 + 9*x2;

model topbrass /wood,plaques,footballs,soccerballs,obj/;

solve topbrass using lp maximizing profit;