Okay so what you would is press ctrl+alt+delete and click log out i think but if you have a disk put it in and secure everything trust me i am a computer savage. i hack thing all the time.
Answer:

Explanation:
Given


See attachment for rectangle
Required
Determine the area of the rectangle
Area is calculated as:

This gives:


<em>The area of Andrea's sketch is 6.25</em>
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It's easier to send the files that way because you don't have to attach them individually, and then your friend won't have to download them individually - they can just download the zip package and have all four right at their disposal.