To save at least $15,000 in 5 years, which monthly deposit is the minimum amount an eighth grader and his family should plan to save for college?
A - $50
B - $150
C - $250
D - $350

C $250

Step-by-step explanation:

based on the question we can get the equation

where m = money, the years are converted to months

15000 = 60m

divide by 60 to each side

m= 250

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.