\begin{tabular}{|l||l||l} Exercice 1 \\ Un entrepreneur partage une prime de 110000 F entre trois employés proportionnellement à leurs \\ salaires respectifs : \( 50000 \mathrm{~F}, 80000 \mathrm{~F} \) et 90000 F ; combien chaque employé recevra-t-il ? \end{tabular}

What is the least common multiple of 10 and 15 ? A. 5 B. 25 C. 30 D. 60 E. 150

\( 2 + ( - \frac { 11 } { 3 } ) ; \quad - \frac { 1 } { 4 } - ( - \frac { 5 } { 6 } ) - 3 \)

b) Anne-Marie calculates the clearance between a fridge door and its open position ( \( 27 \frac{1}{2} \) "), and the countertop across from the fridge \( 32^{\prime \prime} \) away. She wants to know the difference between the two?

A seamstress is using an old cloth measuring tape marked with units to \( 1 / 8 \) of an inch, but the problem is that the old measuring tape has stretched and always gives a slightly larger measurement. The tape is used to measure the length of a dress pattern and then the same tape is used to measure the width of the same pattern. A length of \( 6 \frac{7}{8} \) inches is measured. a) What can you say about the degree of accuracy of the measurement? b) What can you say about the degree of precision of the measurement?

The original price of a tablet was \( \$ 550 \). During a sale, Melvin was given a \( 30 \% \) discount for the tablet. How much did he pay for the tablet?