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12m^2/h》cm^2/min

12m^2/h × 1 h/60 min=.2m^2/min

.2m^2/min × 10000cm^2/1 m^2=2000 cm^2/min

2000cm^2/min

Answer: Mia paints the walls at a rate of [tex]2000 cm^2/min[/tex].

Explanation:

It is given that Mia paints interior walls at a rate of [tex]12m^2/h[/tex].

We know that,

1 m = 100 cm

[tex]1m\times 1m=100cm\times 100cm[/tex]

[tex]1m^2=10000cm^2[/tex]

We also know that,

1 h = 60 min

[tex]12m^2/h=12\times\frac{10000}{60} cm^2/min[/tex]

[tex]12m^2/h=2\times{1000}cm^2/min[/tex]

[tex]12m^2/h=2000cm^2/min[/tex]

Therefore, we can say that she paints the interior walls at a rate of [tex]2000 cm^2/min[/tex].

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