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Mathematics, 24.12.2019 05:31 Imamdiallo18

Eric purchased three music cds and a sweatshirt from a band's online store and received a 20% discount. he paid $100 for his purchase. the following week, the same store offered a 40% discount on all its products. eric's friend neil took advantage of the sale and bought four music cds and two sweatshirts for $120.

1. assuming that the actual prices of the music cds and the sweatshirts are unchanged, the price of a music cd is $
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and the price of a sweatshirt is $
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