September 2018 1 320 Report
En un supermercado un cartel dice 'cada 3 paquetes de yerba se descuentan $3' cada paquete cuesta $a y sofia decide compar 11 ¿CUAL ES LA EXPRESION QUE REPRESENTA EL DINERO DEBE PGAR SOFIA POR LA COMPRA?

A- $ (11a+9) B- $ (11a-11) C- $ (11a-2)
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