Convert 40/9 into a mixed number.

Can you draw an isosceles triangle with only one 80 degree angle?

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?

Which expression gives the area of the triangle shown below