In 2016, a school started its own aquarium with x fish. In 2019, there were x^3 fish in the same aquarium. There were 512 fish in 2019. How many fish were there in
2016? Show your work.

What are the relative frequencies to the nearest hundredth of the columns of the two-way table?

Find the value of p for which the polynomial 3x^3 -x^2 + px +1 is exactly divisible by x-1, hence factorise the polynomial

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?