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Suppose the number of households (in millions) that have at least one toaster can be estimated by the equation
y=1.3x+88, where x is the number of years after 1999.
a. Use this equation or a graph of it to complete the ordered pair (4, ).
b. Write a sentence explaining the meaning of the answer found in part (a).
c. If this trend continues, how many households will have at least one toaster in 2009?