Zach has 3/4 hour play video games. it takes him 1/12 hour to set up the stystem. each round of his favorite game takes 1/6 hour. how many rounds can he play.

What kind of bond pays interest which is exempt from tax?

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?

What is the total surface area of this square pyramid?