Oscar uses place values to divide 63.81 by 9. His steps are shown below. What mistake does Oscar make

What is the greatest common factor of 8 and 36

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?

Diana is painting statues she has 7/8 of a liter of paint each statue requires 1/20 of a liter of paint how many statues can she paint?