18. the scatter plot shows the study times and test scores for a number of students. how long did the person who scored 81 study. write a function rule that relates meters to yards.

if you find 81 and follow it across you will get 50 min.

529 and 531

step-by-step explanation:

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.