Please help
What is the domain and range of the function

Apatient is to take 60 mg of an antibiotic on day 1, take 45mg on days 2 and 3, take 30mg on days 4 and 5 and take 15 mg on days 6 and 7. how many total mg will the patient take?

3382-299=3383- ? fill in the blank?

Reagan lives five miles farther from school than vanessa lives. write an expression to describe how far reagan lives from school