Exercice 1: Trois collégiennes, Léa, Camille et Manon offrent un
cadeau d'anniversaire à une de leurs amies.
Léa paye le tiers du prix du cadeau, Camille paye la moitié du prix
et Manon paye 9 euros.
Quel est le prix du cadeau offert par ces trois amies?​

Acompany produces packets of soap powder labeled “giant size 32 ounces.” the actual weight of soap powder in such a box has a normal distribution with a mean of 33 oz and a standard deviation of 0.7 oz. to avoid having dissatisfied customers, the company says a box of soap is considered underweight if it weighs less than 32 oz. to avoid losing money, it labels the top 5% (the heaviest 5%) overweight. how heavy does a box have to be for it to be labeled overweight?