Mathematics, 21.03.2020 17:01, LSDWW123w

A new model of a cell phone was released while the original model was still being sold. The average number of the original model sold each week was
2750, which decreased by 21% each week after the new model was released. Which function can be used to determine the average number of original
model cell phones sold each week x weeks after the new model was released?

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A new model of a cell phone was released while the original model was still being sold. The average...