Option 21 DHS 6.4

If the total amount of your purchases from the seller Chelovek10000 more than:
- 1843 ₽ the discount is 10%
- 921 ₽ the discount is 5%
- 461 ₽ the discount is 3%

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Option 21 DHS 6.4 Collection of DHS Ryabushko
- 4 ready-made solutions (tasks solved in detail and clearly);
- PDF file extension;
- there are formulas and drawings.