2,3,1,-2,-3,
the first five terms of a sequence are shown above. after the second term, each term in the sequence is the difference of the two terms that precede it. for example, the third term can be obtained by subtracting the first term from the second term. what is the sum of the first 20 terms of the sequence.

Well, the best way to solve this is maybe just to find a pattern, so 2, 3, 1, -2, -3, -1, 2, 3, 1, -2, -3, -1, so we find out that it repeats and the sum is 0 every 6 terms! Now that we know this, We can just find out the last two digits, which are 2 and 3. So 5, which is our answer

Ifound this on google “a skewed (non-symmetric) distribution is a distribution in which there is no such mirror-imaging. a "skewed right" distribution is one in which the tail is on the right side. a "skewed left" distribution is one in which the tail is on the left side. the above histogram is for a distribution that is skewed right.” i hope this you for what your looking for