Store A sells fabric for $3.00 per yard. Store B sells packages of fabric for $3.00 each.

The cost of fabric at either store can be modeled by the function c(t)=3t, where t is the number of yards of fabric at Store A and t is the number of packages of fabric at Store B.

The domain of c(t)=3t is all real numbers.

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