What else would need to be congruent to show that ABC is congruent to DEF by ASA?

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What is the 17th term in the arithmetic sequence in which a6 is 101 and a9 is 83

In chemistry,n molecules of an ideal gas have pressure, volume, and tempersture that stand inthe following relation, where r is constant. solve the equation for n,the number of molecules. pv=nrt