Final answer:
To find the price of Mira's breakfast before the tip, we can set up an equation using the information given and solve for the price.
Step-by-step explanation:
To find the price of Mira's breakfast before the tip, we can use the information given. We know that the tip is 20% of the price of the breakfast and it amounts to $1.80. Let's define the price of the breakfast as x.
20% of x is equal to $1.80, so we can set up the equation 0.2x = $1.80.
To solve for x, we divide both sides of the equation by 0.2: x = $1.80 ÷ 0.2 = $9.
Therefore, the price of Mira's breakfast before the tip is $9.