64 people show up for a volleyball tournament right and solve an equation to find how many four-person teams can be formed

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?

Triangle xyz has vertices x(1,3), y(0,0)

Eden has a part time job. she is paid ? 7.20 an hour the week she worked 18 and a half hours how much is she paid