Store A sells lawnmower fuel for $4.00 per gallon.

Store B sells containers of fuel for $4.00 each.

The cost of fuel at either store can be modeled by the function
c
(
n
) = 4
n
, where
n
is the number of gallons of fuel for Store A and
n
is the number of containers of fuel at Store B.

The domain of
c
(
n
) = 4
n
is all real numbers.

For each store, drag all the additional restrictions needed on values of
n
for
c
(
n
) to model each situation.