1 Pour propulser des billes, Luc a construit un plan incliné
de 30° dont la base mesure
15 cm de long.
Quelle est la longueur
de la pente ? Donne
30°
l'arrondi au millimètre.

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Acontractor needs 54 square feet of brick to construct a rectangular walkway. the length of the walkway is 15 feet more than the width. write an equation that could be used to determine the dimensions of the walkway. solve this equation to find the length and width, in feet, of the walkway.

The? half-life of a radioactive substance is 20 years. if you start with some amount of this? substance, what fraction will remain in 120 ? years

A10 inch cookie cake is divided into 8 slices. what is the area of 3 slices