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How many different triangles can be constructed with the angle measurements of 134° 10° and 36° ?

Which ordered pair is a solution to the system of linear equations? 2x + 3y= 6 –3x + 5y = 10

You were told that the amount of time lapsed between consecutive trades on the new york stock exchange followed a normal distribution with a mean of 15 seconds. you were also told that the probability that the time lapsed between two consecutive trades to fall between 16 to 17 seconds was 13%. the probability that the time lapsed between two consecutive trades would fall below 13 seconds was 7%. what is the probability that the time lapsed between two consecutive trades will be between 14 and 15 seconds?