math
posted by mi .
tisha works 5 days a week as a paramedic. she has 10 holidays off and 3 weeks vacation every year. if tisha never misdes a regular day of work, how many days does she work in each year that is not a leap year?

5 * 52 = 260 days
10 + 15 = 25
260  25 = ? 
she would have two days a week off. this would mean that her 3 weeks vacation is 3x7=21 days. please respond.

The question asks how many days she works.
If she worked 5 days a week for 52 weeks, she'd work 260 days.
I subtracted her 10 holidays and the 15 days that she didn't work. 
3 weeks vacation days equal 21 days. we are off two days a week.