Which is the constant of proportionality for the data in the table?

a
18

b
2

c
6

d
12

C) 6

Step-by-step explanation:

From the given data we can find the constant of proportionality by dividing The number of people by number of cars.

Constant of proportionality =

Taking any point from the table will give the same constant of proportionality as they are proportional quantities.

Constant of proportionality =

This can be written as 6 people per car.

For 10 cars, number of people will be ==60 people.

36 is the final answer! : )