Final answer:
The difference between Taylor's best time (27.2 seconds) and worst time (29.1 seconds) in the 100m freestyle heats is 1.9 seconds.
Step-by-step explanation:
To find the difference between Taylor's best and worst times in the 100m freestyle heats, we first identify the fastest (best) and the slowest (worst) times from the given heats. Taylor's times are 29.1 seconds for the first heat, 28.7 seconds for the second heat, and 27.2 seconds for the third heat. We see that her best time is 27.2 seconds and the worst time is 29.1 seconds.
We then calculate the difference by subtracting the best time from the worst time, which gives us:
29.1 seconds - 27.2 seconds = 1.9 seconds
So, the difference between Taylor's best and worst times is 1.9 seconds.