1) 4.5*m+3.10*m+1.5*n+1.15*n=(4,5m+3.10m)+(1.5n+1.15n)=7.6m+2.65n
1)4.5*m+3.10*m+1.5*n+1.15*n=7.6m+2.65n
1) 4.5*m+3.10*m+1.5*n+1.15*n=(4,5m+3.10m)+(1.5n+1.15n)=7.6m+2.65n
1)4.5*m+3.10*m+1.5*n+1.15*n=7.6m+2.65n