Respuesta :
change=paid-cost
change=5.00-1.75
change=3.00+2.00-1.75
change=3.00+1.00+1.00-1.00-0.75
change=3.00+1.00-1.00+1.00-0.75
change=3.00+0+0.25
change=3.25
change=$3.25
change=5.00-1.75
change=3.00+2.00-1.75
change=3.00+1.00+1.00-1.00-0.75
change=3.00+1.00-1.00+1.00-0.75
change=3.00+0+0.25
change=3.25
change=$3.25