Suppose that ten people, including you and a friend wearing matching outfits, line up for a group picture. How many ways can the photographer rearrange the line if she wants to keep exactly three people between you and your friend?

lo.lll

step-by-step explanation:

you estimate that the angle of elevation to the top of the 86th floor (the observatory) is 82 .the total height of the building is another 123 meters above the 86th floor.

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whats the rest of it?

i think the answer is b. i hope i !