What is half life?

A patient was hospitalized after having an episode lasting one week in which he had excessive optimism, increased energy, he slept very little and had very little appetite for food. In contrast his desire for sex was increased and he was arrested for his lewd behavior in a public setting which was uncharacteristic for him according to family. He was also sent home by his boss for behaving inappropriate toward colleagues. Which of the following is the most accurate diagnosis?

Fantasia always tips their server 20%. If Fantasia gave a tip of $13, how much was their original bill?

Which is the correct scientific notation for the number 0.000465?

Parlons français ensemble.      

R. Les pronoms complements d’objet indirect To whom does each indirect objet pronoun refer?  

J’ai ___________ carte pour le cours de géographie.

J’étudie la structure des ordinateurs dans mon cours _________.

Mme Clavel parle à son agent de voyage.

Mais ma sœur est tout le contraire; elle  _________________ toujours à notre mère.