Without using a calculator, order the following numbers from least to greatest. square root of 149, 12, 11

Need this asap if anyone can i would be very grateful. if you could show workings that would really

Solve 2x+y=3 x+y=5 in substitution method

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?