Respuesta :
48,000 / 12 = 4000.....so she makes $ 4000 per month salary
6,000 = 4,000 + 0.04x
6000 - 4000 = 0.04x
2000 = 0.04x
2000/0.04 = x
50,000 = x <=== she needs this in sales
6,000 = 4,000 + 0.04x
6000 - 4000 = 0.04x
2000 = 0.04x
2000/0.04 = x
50,000 = x <=== she needs this in sales