Answer:
[tex]Michelle \: pays \: 1280[/tex]$
Step-by-step explanation:
[tex] \frac{x}{3200} = \frac{40}{100} [/tex]
[tex](x)100 =( 40)3200[/tex]
[tex](x)100 = 128000[/tex]
[tex] \frac{(x)100}{100} = \frac{128000}{100} [/tex]
[tex]x = \frac{128000}{100} [/tex]
[tex]x = 1280[/tex]
[tex]Michelle \: pays \: 1280[/tex]$