Not brushing your teeth in the morning and night
Ramon seems the most likely to abuse drugs because of peer pressure. In his situation you can see that his parents are gone often and he likes to throw parties at his house where the people coming are likely to bring drugs and alchohol.
All other situations wouldnt make sense.
Hope this helps (: Pleaselet me know if i should explain more (:
When you multiply 3.41 times 2 you get 6.82
When you subtract the exponent β to get ∫og ∨∨3
you get ₉ as your number because ₙₓ + quadratic formula = b3 + a