Arrays are described as immutable because they are two dimensional. are arranged sequentially. can be reordered. cannot be changed once they are defined.

they really not common the os x is just a better version of the os like in iphone theirs xr and their xs

assuming you are in the home page.

1) go to the upper right hand corner

2) click on your "profile picture"

3) go down to "edit profile"

4) it should be titled as "edit your profile", click on "profile picture"

5) choose a file

6) press "change"

you're profile picture is updated

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answer; peter zenger;