We know that
• The cost is $91.04 per month.
,• Erika's employer covers 60% of this cost.
,• The time is 30 years.
First, we find the amount per month that her employer pays.
[tex]91.04\times0.60=54.624[/tex]Then, we subtract
[tex]91.04-54.62=36.416[/tex]This means the amount of $34.42 is deducted from Erika each month.
Now, we multiply this amount by 12 to find the amount per year.
[tex]36.416\times12=436.99[/tex]Therefore, the answer is C.The amount per year is $436.99, approximately.