Which quantity can be described as changing at a constant rate?
A. The number of people involved in a
shared email, if each person must
share the email they received with
7 new people.
B. The number of players left in a
tournament, when half of the
players are eliminated each turn.
C. A Flu virus, which will infect 3 new
people for every 1 person infected.
D. The total number of logs used for a
bonfire, if 5 new logs are added
each hour