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If you are comfortable with the concepts and definitions and are just having trouble with the questions themselves, it would be a good plan to review as many practice exams as you can to get famili...

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3. What strategies can I use to prepare for my AP Biology course that begins in five months?🥺

The only one who can really answer this is you.  High School courses are typically designed to last about 10 months with 4 - 5 hours of classroom time per week.  If you review is going well, with s...

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3. How feasible is it to refresh my math from algebra and then to learn calculus in one year after not touching math since high school?

If you believe you have completed the Simple Snowman Challenge correctly and you are still having trouble, please report the issue to the Help Center: https://support.khanacademy.org/hc/en-us/reque...

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3. how do you get the cool hopper avatar

On KA pages, in the header, in the upper-left corner is a link labeled "Courses."  Click the down arrow.  A list of KA courses, organized by subject, will appear.  Scroll down.  The lower-right sec...

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3. Can’t find some courses easily

For Step 1 of the Wordiest Author Challenge, you only need one SELECT statement.  Your second statement here looks correct, except it is missing the final ;  Try deleting the first statement and se...

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3. Learning SQL - what am I doing wrong on this challenge???

3^2 is the same as 1(3^2).  Does it make more sense if we add this step? 3(3^2) + 3^2 = 3(3^2) + 1(3^2) = (3 + 1)(3^2) = 4(3^2) = 36

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It's a little hard to say without knowing what you have already studied, but you may want to try the following: Prealgebra: https://www.khanacademy.org/math/get-ready-for-algebra-i Algebra I: https...

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3. What math sections of Khan Academy should I study to get ready for the SAT? (I need an answer pleasee!!)

If you are asking about the Computer Programming course, those functions are covered in the Documentation.

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3. Missing lesson on floor and roof function

If you are not confident in your current skills, I would consider taking Pre-Algebra and Algebra Basics.  If you feel good about your basic skills, I would suggest taking Algebra 1, Algebra 2, Coll...

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3. Linear Algebra track

Each of these courses has a Course Challenge button on its main page.  Try taking the course challenge for each.  Then, tackle them in order from one for which you have the most Mastery to the one ...

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3. Pre-Algebra Vs Getting ready for Algebra 1 Vs Algebra basics