Draw an obtuse triangle pqr with longest side as segment pr. then draw equilateral triangles apq and bqr lying outside the given triangle. assuming that the measure of each angle of an equilateral triangle is 60 degrees, prove that segment ar is congruent to segment pb.

The last time i bought this product , it cost $20.00 but it looks like it cost 29. 60 today? what is the increase

The distribution of the amount of money spent by students for textbooks in a semester is approximately normal in shape with a mean of $235 and a standard deviation of $20. according to the standard deviation rule, how much did almost all (99.7%) of the students spend on textbooks in a semester?

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