What is the most important role of the ecosystems of the Andes? Keep the environment stable and reduces air pollution Reduce the chance of floods, desertification, and landslides Regulate the availability of freshwater All of the above

5! \( 74794 \frac{144}{1691} \)

school receives gifts of \( \$ 600 \) and \( \$ 800 \). The money is split equally among the chool's 16 clubs. How much money does each club receive? Show your work.

8. Gegeben sind die Funktionen \( f_{a} \) mit \( f_{a}(x)=a x^{2}-3 a x+1, a \neq 0 \). Zeigen Sie: Die Gleichung der Tan- gente an den Graphen von \( f_{a} \) an der Stelle \( x=1 \) lautet \( y=-a x+1-a \). Ermitteln Sie, für welchen Wert von a diese Tangente durch den Koordinatenursprung geht.

Pilar's hair is 7 inches long. If her hair grows 2 inches each month, how long will her hair be after 6 months?

Separor en termines y resolvel A. \( 46+15-2 \times 10+36: 6= \) \( B-40: 8+36-49: 7 \times 1= \) \( C-120 \times 2-50: 5 \times 2+360= \) \( D-20 \times 0.2+15 \times 3: 5-350: 30= \) \( e-16 \times 39+17 \times 3-240: 60= \) \( E-130+32 \times 40-25 \times 2+2455= \)