A already assigned variable cannot be assigned twice You can make the variable change over to a new one or call a whole new one to assign one without a value or It might be possible to do v=n (v is variable and n is number / value)
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:
Step 1 - Open the View tab.
Step 2 - Open the Page Setup dialog box
Step 3 - Open the header and footer tool.
Step 4 - Click OK.
Explanation:
In order to access to the header and footer tools
Step 1 - Open the View tab.
Step 2 - Open the Page Setup dialog box
Step 3 - Open the header and footer tool.
Step 4 - Click OK.
