I might not be right but I think William's fastest speed is 7.5 km/h.
Answer:
Check the image below
Step-by-step explanation:
Time is C. 50 seconds
Step-by-step explanation:
The population of bacteria at time t here is given by

where
b is the number of bacteria
t is the time in seconds
Here we want to find the approximate time at which the number of bacteria is
b = 625
Substituting into the equation and solving for t, we find:

Therefore, the solution is
C. 50 seconds
Learn more about population growth:
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Answer: 9:20
Step-by-step explanation:
After 25 minutes, Nico should take them out, so 9:20.
If the <em>n</em>-th term of the sequence is given by <em>n</em> ² - 2, then the 5th term is obtained by simply replacing <em>n</em> with 5 :
5² - 2 = 25 - 2 = 23