Which mark is an indicator of invalid data in a cell? A.) red circle around the value

B.) blank cell

C.) $NULL before the value

D.) red triangle in the top left corner of the cell

Print "usernum1 is negative." if usernum1 is less than 0. end with newline. convert usernum2 to 0 if usernum2 is greater than 10. otherwise, print "usernum2 is less than or equal to 10.". end with newline

Which of the following does 3d animation create an illusion of on the screen? a. depth b. emotion c. length d. dialogue

How do you write an argumentative essay about the importance of free enterprise ?