There are 69 vehicles in a car park, 33⅓ % are vans. What fractions are vans? Give the answer in the lowest form.

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?

Olga used 100 ounces of flour to make 225 muffins. how many ounces of flour will be used to make 300 muffins?

Which system of linear inequalities is represented by the graph?