Currently, Janet earns $30/hour and works 40 hours a week, so she earns 30 * 40 = $1200 per week.
In a month with four weeks, she currently earns 1200 * 4 = $4800 per month.
If she becomes a freelancer, she would earn $40/hour and work 40 hours a week, so she would earn 40 * 40 = $1600 per week.
After four weeks, she would earn 1600 * 4 = $6400 per month as a freelancer.
However, as a freelancer, she would have to pay an additional $25 per week in FICA taxes, so she would pay 25 * 4 = $100 per month.
She would also have to pay $400 per month in healthcare premiums.
So, her total additional expenses as a freelancer would be 100 + 400 = $500 per month.
Therefore, her net income as a freelancer would be 6400 - 500 = $5900 per month.
To calculate how much more money she would make as a freelancer, we subtract her current income from her income as a freelancer: 5900 - 4800 = $1100.
Therefore, Janet would make $1100 more per month as a freelancer.
#### 1100
The answer is: 1100
Below is a math problem. Provide a detailed, step-by-step solution.

### Problem:
If Janet is currently working 40 hours a week and considering quitting her job to become a freelancer, where she would also work 40 hours a week, and she earns $30/hour at her current job and $40/hour as a freelancer. However, as a freelancer, she would have to pay an additional $25 per week in FICA taxes and $400 per month in healthcare premiums. How much more money would Janet make per month as a freelancer, considering there are four weeks in a month?

### Answer:
