I need help pretty plz

Part a: yellow square 3 by 3 orange square 2 by 2

Part b: 78 inches is the area

Step-by-step explanation:

Hard to explain but its just the answer i think but part b is hard because i don't know how long the width is

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.