Suppose we use a triangular matrix to count pairs and the number of items n = 20.
If we store this triangular matrix as a ragged one-dimensional array Count, what is the index where count of pair (7, 8) is stored?

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Iposit c as the correct answerbeing a waitress and managing a restaurant can be different jobs in the same care  this is because the difference between the two is attitude. they can be both jobs or careers, if the attitude of the job-doer is that way. on e can be a manger yet sees it a s a job. the job of waitress can also have an impact on future job prospects thus is important for the career line.