correct variables needed in answer

Consider the following transshipment network for finding the shortest route from node 1 to node 7. (a) Formulate a linear programming model of the problem. (Express your answers using xij where whe Min Check which variable(s) should be in your answer. S.t. Node 1 Flows Capitalization of variable(s) is important. Check that your upper and lower case ma Node 2 Flows X12+X32+X52X23X25=0 Capitalization of variable(s) is important. Check that your upper and lower case ma Node 3 Flows Capitalization of variable(s) is important. Check that your upper and lower case ma Node 4 Flows X14X46=0 Capitalization of variable(s) is important. Check that your upper and lower case ma Node 5 Flows X25+X35+X65X52X53X56=0 Capitalization of variable(s) is important. Check that your upper and lower case ma Node 6 Flows X46+X56X65X67=0 Capitalization of variable(s) is important. Check that your upper and lower case ma Node 7 Flows X57+X67=1 Capitalization of variable(s) is important. Check that your upper and lower case ma For all xij=0,1