Naomi got an email inviting her to join a fan club for her favorite singer. The fan club costs $7.50 a week. She decided not to join. How much did she save after a year?(1 point)
To calculate the amount Naomi saved after a year, we need to calculate the total cost of the fan club for a year and subtract it from the total amount she would have spent if she joined.
The cost of the fan club per week is $7.50.
There are 52 weeks in a year.
Total cost of the fan club for a year: $7.50/week x 52 weeks/year = $<<7.50*52=390>>390
Therefore, Naomi saved $390. Answer: \boxed{390}.