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Sagot :

Bonjour,

exercice 1

(50 + 80)/13 => 10 étagères seront remplis

exercice 2

[38 - (8*1,50) + (2*4)]/4

= (38 -12 - 8) /4

= 18/4 => 4,50€ le DVD

exercice 3

12+ 4*4,5 = > 30€

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