Variable need for a test i have today

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?

Hey am have account in but wished to create an account here you guys will me with my make new friends of uk !

What is the name of a polygon that has four congruent sides and theses angle measures 60,120,60,120?