Mr. Elbow needed to rent a moving van. Company A charges a rate of $90 per hour plus a $50 truck fee. Company B charges $70 per hour plus a $90 truck fee. For what number of hours of rental is the cost for the two companies the same?

idek

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.

28

step-by-step explanation:

because that's the answer

b, i believe, but not sure.