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Answer: There are 2.25×10³⁴ bacteria at the end of 24 hours.
Step-by-step explanation:
Since we have given that
Number of bacteria initially = 1
It triples in number every 20 minutes.
So, 
So, our equation becomes

We need to find the number of bacteria that it will contain at the end of 24 hours.
So, it becomes,

Hence, there are 2.25×10³⁴ bacteria at the end of 24 hours.
10. 15.00
11.C
13.C
for 10 just add all the numbers together for each person like 3.00 4 time because there is 4 people and then 1.50 2 time because there are 2 people.
Use the formula for s•d=T
The answer is x=45y