Răspuns :
varianta 1
(12,56 × 10) + (41,275 × 10) + (29,11 × 10) = 125,6 + 412,75 + 291,1 = 829,45 lei
varianta 2
(12,56 + 41,275 + 29,11) × 10 = 82,945 × 10 = 829,45 lei
a)(12,56+41,275+29,11)x10=829,45 lei ,s-au incasat pt. cafeaua vanduta!..Alt modb)..(12,56x10)+(41,275x10)+(29,11x10)=829,45lei!Sper ca te-am putut ajuta!O zi super!