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It is the 'backstage' in which you can <span>save, select a template, change document properties, and close or exit excel</span>
Explanation:
10:A program that assigns the sum 20,30,40
20: input 20,30,40
30:sum input
40: print total
End
Answer:
C, proprietary software
Explanation:
Proprietary software, also known as non-free software, is computer software for which the software's publisher or another person reserves some rights from licensees to use, modify, share modifications, or share the software. It sometimes includes patent rights.
Answer:
files can easily infect your computer with viruses or malware.
Explanation:
