Respuesta :

bayaankoolinaasir

Answer:

$2400

Step-by-step explanation:

Let her monthly income in 2016 be x. The equation is x-(25%×x)=1800

x-(25x/100)=1800

x-x/4=1800

4x-x=7200

3x=7200

x=7200/3

x=2400

Hope it helps