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4-30.

 At Jaques’ Bistro they serve two sizes of espressos, small and large .  In a given day they made x of the small drinks and y of the large drinks.  What do the following expressions represent in this context? 

The variables and represent the volume sizes of the respective drinks.

  • Since and are volume sizes, then represents the sum of the volumes of the drinks.

  • What did the variables and represent?

  1. Since is the number of small drinks sold, and is the volume of the small drink, then represents the total volume of all small sized drinks sold. What would represent?