Marinada '21

[lang=hr] Poduzetni patak Pipi na svom pačjem prodajnom pštandu prodaje pačje novine i svoje omiljeno piće Pipi. Prošlog je petka uprihodio $246$ kuna prodajom $32$ pačje novine i $11$ guceva Pipija, dok je prošlog ponedjeljka uprihodio $133$ kune prodajom $15$ pačjih novina i $14$ guceva pipija. Koliko kuna košta guc Pipija na Pipijevom pačjem prodajnom pštandu? [/lang] [lang=en] Deedee the Diligent Duck works very hard on his lemonade stand where he sells lemonade and grapes. Last Friday he earned $246$ duck dollars by selling $32$ glasses of lemonade and $11$ pieces of grape, and last Monday he earned $133$ duck dollars by selling $15$ glasses of lemonade and $14$ pieces of grape. How many duck dollars does a piece of grape cost on Deedee's lemonade stand? [/lang]