At a store, toothbrushes cost t dollars and bottles
of mouthwash cost m dollars. One customer bought 2
toothbrushes and 1 bottle of mouthwash for $11. Another
customer bought 9 toothbrushes and 3 bottles of
mouthwash for $36. Both amounts do not include tax.
Write a system of equations for t and m and solve using a
table. What does the solution represent?