The process of changing a variable's data type is called type casting.
True
Or False

you can not change you age soon as you signed up. the only way is too delete your account and use another account to sign up and put your correct age.

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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