Answer:
11.3
Step-by-step explanation:
198 ÷ 21 = 9.4285714286
........... Um.... Well then.. Is that an option?
There will be 2.400 bacteria after 12 hours.
If it grew by 0.200 in 6 hours then it will be 0.400 at 12 hours because it is doubled.
With fractions, you have to make sure their denominator is equivalent/ same.
For example, if I were to add 1/2 and 3/4, I would need to convert 1/2 into 2/4.
Then I would add then together, and get 5/4, which can be simplified into 1 and 1/4,.
When adding decimals, you have to line them up. So, lets say I were to add 3.45 and 2.4
I would have to line them up like so:
3.45+
2.40
Your answer:5.85.
You have a bucket, which is 1 gallon big.
So, to mix cleaner and water, you have to divide the bucket´s capacity into 4.
In this case, it´s 1 quart of the cleaner, as 1 gallon is 4 quarts. 4 quarts/ 4 quarts = 1 quart.
Have a very nice day :D
