IDZ 1.1 Var 13

If the total amount of your purchases from the seller roman_fleiteng more than:
- 20 $ the discount is 25%
- 10 $ the discount is 10%
- 6 $ the discount is 5%
- 3.5 $ the discount is 3%

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Ryabushko IDZ 1.1 Var 13 (.doc)
Solutions of higher mathematics Ryabushko.