Answer:
Yes, it is true, because it informs you
Explanation:
You can use predesigned, formatted files called -templates- to create new worksheets quickly.
Answer:
underscore hope that helps
Explanation:
False i doesnt shows anything like this
Answer:
2.489 dB
Solution:
As per the question:
Power ratio, 
The Equivalent of this power ratio in decibel or dB is calculated by taking the log of the power ratio as below:


Thus the value of the power ration in decibel comes out to be 2.489 dB