Final answer:
The difference between Laure's fastest and slowest time running the 40 yard dash is 2.26 seconds.
Step-by-step explanation:
To find the difference between Laure's fastest and slowest time running the 40 yard dash, we need to subtract the slowest time from the fastest time. Laure's fastest time is 5.19 seconds and her slowest time is 7.45 seconds.
Fastest time - Slowest time = Difference
5.19 s - 7.45 s = 2.26 s
Therefore, the difference between Laure's fastest and slowest time running the 40 yard dash is 2.26 seconds.