Answer:
A. 
Step-by-step explanation:

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Answer:
The first zero after decimal point and 4 only
Step-by-step explanation:
Despite having 5 decimal points, the rules of significant figures dictate that unless there is a digit other than zero after, the only significant numbers are those that come before zero. For this case, the significant digits are only 0.04 but if it was 0.0400005 then all the other zeros would have also be considered significant.
Answer: A
Step-by-step explanation:
Answer:
9m3
Step-by-step explanation:
multiply every thing if the answer is not satisfactory its because there is a bunch of info losing