Question

question 9 (2 points)
what is the default file extension for all excel documents?
.txts
.doc
.xlsx
.docx
question 10 (2 points)
every formula must begin with a
a parenthesis ()
+ only
= sign
the word \formula\

Explanation:

Question 9: The default file - extension for Excel documents is .xlsx.
Question 10: In Excel, every formula must start with an equal sign to indicate it's a formula.

Answer:

Question 9: C. .xlsx
Question 10: C. = sign