Ben purchases a gallon of paint and some paintbrushes. Each paintbrush costs the same amount. The equation y= 60 + 30 models the total cost of Ben's purchase. what does the value at x = 0 represent in the situation?​

i will pick c put check it over to be sure

step-by-step explanation:

is this part of a question or something

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.