Selena's Salty Taffy and Walter's Watery Taffy both sell bags of
salt-water taffy. The table below
shows the prices (after tax) of
each bag of salt-water taffy at
each store. At both stores, there
is a linear relationship between
the price of a bag and the
number of pieces of salt-water
taffy in the bag. These are the
only bags of salt-water taffy
available at each store.