1.) Eighty boy scout consume 60 loaves of bread in 12 camping days. How many loaves of bread will 120 boy scouts need in 18 days? 2.) Six xerox machines can copy 30,000 sheets in 5 days. How many machines are needed to recopy 30,000 sheets in 10 days? 3.) If 8 boys can finish their project in 12 days, how many boys will be requirea to finish their project in 16 days?

4. Dado \( z=\left(p^{2}-9\right)+(p+3) i \), calcule \( p \) para que se tenha a) um número real. b) um número imaginário puro.

I. Solve each of the following quadratic equations using the quadratic formula. Express you answer in two decimal places. \( \begin{array}{ll}\text { 1. } x^{2}+x-6=0 & \text { 6. } x^{2}+5 x+1=0 \\ \text { 2. } x^{2}-8 x+12=0 & \text { 7. } x^{2}-9 x-1=0 \\ \text { 3. } 2 x^{2}-3 x-6=0 & \text { 8. } 3 x^{2}+6 x-1=0 \\ \text { 4. } x^{2}-6 x-5=0 & \text { 9. } 2 x^{2}+3 x-4=0 \\ \text { 5. } 5 x^{2}-3 x=0 & \text { 10. } 5 x^{2}-4 x+3=0\end{array} \)

3n inventory account typically consists of four separate categories: mention them ( 2 points) .4 Explain the term "Just-in-Time Management" ( 2 points) 1.5 The product life cycle presents two major challenges. firstly, a firm must be good at developing new products to replace aging ones. Secondly a firm must be good at ...... ( 2 points) 1.6 Describe the term price elasticity? ( 2 points)

Dans chaque cas, dire si on peut développer l'expression en utilisant \( \mathrm{k}(\mathrm{a}+\mathrm{b})=\mathrm{ka}+\mathrm{kb} \). Si oui, la développer. \( \begin{array}{llll}\text { a. } 3(a+7) & \text { b. } 7+(2 b+3) & \text { c. } 5 \times(a \times b) & \text { d. }(x-4) \times 2 \\ \text { e. } 4(2+x) & \text { f. } 6(2 y-1) & \text { g. } 5(1-2 t) & \text { h. }-4(5 n-1)\end{array} \)

1. \( (x-5)^{2}= \)