If two sides of the triangle are 12 inches and 18 inches, what is the range of the possible lengths of the third side

a) 6 b) 12 c)7 d)15

d is the closest to the real answer assuming the question is asking for an estimate

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.