Noah says 4/9 is equivalent to 20/45. Check his work by completing the table of equivalent ratios.

If you are just building your payment history, how many points from a perfect score will you possibly miss?

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?

Find the distance between (0,5) & (-4,2)