Jane is designing a robotic arm that is required to move like a human arm. Select the simple machine she will use. A.
system of levers
B. wedge
C.
wheel and axle
D.
inclined plane

B) wedge

Explanation:

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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