Maria came across some new instruments and doesn’t know what they are used to measure. What are these instruments used for? A digital micrometer is used to measure . An analytical balance is used to measure .

sry need points : (

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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