When a formula contains the address of a cell, it is called a c<span>ell reference.
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Answer:
The oldest malware vector was emails.
Explanation:
Websites were not widespread early on into the internet, however it was very easy to have a virus that uses an email contact list, where it can send itself to other email addresses and spread.
Answer:

Explanation:
When we convert any decimal number into the hexadecimal number we have to divide that number with 16.
Now according to question the decimal number is 35.
Now to convert this in hexadecimal divide it with 16.

This means the quotient is 2 and the remainder is 3.
Therefore the value of hexadecimal is,

Therefore,
.