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

m

Step-by-step explanation:

proportions are fractions that equal to each other. so if two fractions are the same, they are proportional.

let's check the answers to see if they are proportional.

question a is not proportional because you can't turn 1.5/3 to 3/9. if you try to multiply 1.5/3 by 2 or 3, you wont get 3/9. it's impossible to make the fractions the same.

question b is not proportional because you can't turn 22/33 to 4/6. 33 can't go into 6.

question c is proportional because when you multiply 2 and 3 by 71, you would get 142/213, and those fractions equal to each other

question d is proportional because when you divide 14 and 7 by 2, you would end up with 7/3.5, and those fractions equal to each other.

i would need to see the shape

step-by-step explanation: