David recorded his finishing time, in seconds, for each time he ran the 100 m race during one track season. what was the median of his finishing times?

11. 9 11.9 12.0 12.1 12.1 12.2 12.3 12.4 12.4

whole numbers.

step-by-step explanation:

we are given the average monthly rainfall (in millimeters) model r(m) for the years 1900-2009 as a function of the month number m.

as we can see m is taken for the number of months for years 1900-2009.

we know that number of months can't be a negative number or decimal number or a fraction.

so, the number of months could be only positive whole numbers.

therefore, whole numbers is more appropriate for the domain of r.

b, i believe, but not sure.