Find the difference.
-3.4 -(-1.9)

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?

Pls! does anybody know a shortcut for answering these types of questions in the future?

Asequence is defined recursively using the formula f(n + 1) =f(n) - 5. which sequence could be