If the price for the small shake is 4.25, what would be a reasonable price for the large size ? how can you encourage customers to get the large shake?

$6.75

Step-by-step explanation:

Small shakes are normally three times smaller than large shakes. so the price should be three times. but the price would be $13.50. Encourging the cosomers to by the large shake because it's, less than double the price of a small one, but three times more.

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step by step solution :

step   1   :

1.1     4 = 22

(4)3 = (22)3 = 26

equation at the end of step   1   :

  ((23) • 26)2

step   2   :

equation at the end of step   2   :

  (23 • 26)2

step   3   :

final result :

  218

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