Answer:
6 address lines
Explanation:
The computation of the number of address lines needed is shown below:
Given that
Total memory = 64MB
= 
=
Also we know that in 1MB RAM the number of chips is 6
So, the number of address lines is
i..e 26 address lines
And, the size of one chip is equivalent to 1 MB i.e. 
For a single 1MB chips of RAM, the number of address lines is

Therefore 6 address lines needed
If you are referencing cell (C2)in Excel and want to be able to copy the formula and keep using the data in cell C2 in every place you copy it to, the way to reference the cell? is known to be $C$2.
<h3>What is a cell reference in Excel?</h3>
A cell reference is known to be called a cell address and this is seen as a make up of a column letter and also those of row number that tells a cell on a worksheet.
Hence, If you are referencing cell (C2)in Excel and want to be able to copy the formula and keep using the data in cell C2 in every place you copy it to, the way to reference the cell? is known to be $C$2.
Learn more about cell referencing from
brainly.com/question/19035038
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Answer:
Hubs incorporate amplifiers and repeaters.
Explanation:
Hub is an outdated way of connecting ethernet devices, they incorporate amplifiers and repeaters, they do not allow simultaneous communication among connected devices.
The latest technology in connecting ethernet devices are with the use of switch.
the answer is Headers should be descriptive of the cell content, The font size should be at least 18-point. hope this helps!!!