Respuesta :

Step-by-step explanation:

Here we can see cost of 1 muffin = $2.25

And we can see here muffin is increasing by 3

So

x = 9

And cost of 9 muffins = $2.25 * 9 =$ 20.25

And

Cost of 12 muffins = $ 2.25 * 12 = $27

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