Which drugs is considered the ''date rape'' drug because of it's ability to deeply sedate it's users, making them incapable of remembering what occured after they took it

Plz .a bacteria population increases every hour. at 12 pm, there are 5cells. at 1pm there 10 cells. at 2 pm there 20 cells. at 3 pm there 40 cells. if the pattern continues how nany cells will there be at 7 pm. this is math.