To determine how much Margo will save after a year by saving 22% of her $2500 paycheck each month, we can start by finding 22% of $2500.
To express 22% as a decimal, we divide by 100:
\[ 22% = \frac{22}{100} = 0.22 \]
Now, we can set up a proportion to find how much she saves each month:
Let \( x \) be the amount Margo saves each month.
\[ \frac{x}{2500} = \frac{22}{100} \]
Now, we can solve for \( x \):
Multiply both sides by 2500:
\[ x = 2500 \times \frac{22}{100} \]
Calculating the right-hand side:
\[ x = 2500 \times 0.22 = 550 \]
So, Margo saves $550 each month.
Now, to find out how much she saves in a year:
\[ \text{Total saved in a year} = 550 \times 12 = 6600 \]
Therefore, Margo will have saved $6600 after a year.