7. En una serie de 3 razones geométricas equivalentes continuos, se cumple que la suma de las razones es 9/2. Si la diferencia de los términos extremos de la serie es 57, halla el último antecedente.

What is (28 + 7 + 6 + 3) x 1/2 show your work

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?

Problem melissa is her dad build a walkway in their backyard. the walkway will be 54 feet long and 1.5 feet wide. the local hardware store sells tiles which are 1.5 by 1.5 feet and come in boxes of 12. how many boxes of tiles do they need?