Milos is trying to prove that the sum of any two rational numbers is a rational number. his first steps are shown. which is the best method milos could use to continue?

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?

Find the value of x for which abcd must be a parallelogram -9-6x x-30

Which system of linear inequalities is represented by the graph?