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Social Studies, 20.02.2021 21:00 SKYBLUE1015

Los dueños de una casa fotográfica quieren vender postales a los turistas con imágenes de Quito antiguo. Los precios de estas se explican en el siguiente cuadro. Si Sebastián compró dos fotos de 10 cm x 15 cm y tres fotos de 15 cm x 21
cm, Diego compró 4 fotos de 13 cm x 18 cm y dos de 15 cm x 21 y Camila compró una foto de cada medida. ¿Cuánto
tendrá que pagar cada uno por las fotos que compraron? (Quién de los tres gastó más dinero?​

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