The equation that represents filling y jars of honey in c seconds is b. y = 0.8c
A machine can fill 24 jars of honey in 30 seconds. We can represent this information as a proportion:

Let y represent the number of jars of honey to be filled in c seconds. We can set up a proportion to represent this relationship:

Since the rate of filling honey remains constant, these two proportions are equivalent. This means we can set them equal to each other:

Now, we can solve for y. To do this, we can cross-multiply:
24 jars * c seconds = y jars * 30 seconds
Dividing both sides by 30 seconds, we get:

Simplifying the fraction, we get the final equation:

Therefore, the equation that represents filling y jars of honey in c seconds is:
y = 0.8c