Tawanna is asked to find the GCF of each term in the expression 2 a b + 8 b. Her work is shown below. Factors of 2ab: 1, 2, a, and b Factors of 8b: 1, 2, 4, 8, and b GCF: (1) (1) (2) (2) (b) (b)

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.

answer: c.  

step-by-step explanation:

mixtures containing substances that get attracted to magnet can be separated using a magnet. we can separate iron from a mixture of sand and iron, as only iron attracts to the magnet.