A pair of shoes at a store costs $7.50. The total cost, in dollars is given by the function C(s) = 7.5s. What is the cost of 4 pairs of shoes?

A
$35

B
$30

C
$25

D
$50

5x+2x=49

7x=49

x=7. 35 apples

news channels,news papers,and the internet

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.

what are the answer choices given for this problem?