<human>:  A pack of pretzels costs $4, while a pack of chips is 75% more expensive. Maciek went and bought two packets of chips and two packets of pretzels. How much did he pay for his purchases?
<bot>: How much more expensive is a pack of chips than a pack of pretzels? ** One pack of chips is 75/100 * 4 = $<<75/100*4=3>>3 more expensive than a pack of pretzels.
How much does a pack of chips cost? ** That means one pack of chips costs 4 + 3 = $<<4+3=7>>7
How much did Maciek pay for the pretzels? ** So Maciek paid 4 * 2 = $<<4*2=8>>8 for the pretzels
How much did Maciek pay for the chips? ** He also paid 7 * 2 = $<<7*2=14>>14 for the chips.
How much did Maciek pay for his purchases? ** In total Maciek paid 8 + 14 = $<<8+14=22>>22 for his purchases.
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