\( X 36 \) Résoudre dans \( \mathbb{R} \times \mathbb{R} \) les systèmes d'équations suivants : \( \begin{array}{ll}\text { (1) }\left\{\begin{aligned} x+y=-1 \\ x y=-1\end{aligned}\right. & \text { (4) }\left\{\begin{array}{l} \frac{x^{2}}{y}+\frac{y^{2}}{x}=0 \\ x y=-1\end{array}\right.\end{array} \)

Solve the equation. \( \ln (8 \mathrm{x}+15)-\ln \mathrm{x}=\ln 9 \) Select the correct choice below and, if necessary, fill in th A. The solution set is \( \{ \) B. The solution is the empty set. (Simplify your answer. Use a comma to separate a

1. Louls owns his own orchard. He plants 5 fruit trees for every 5 nut tiees. The equation \( f=\frac{9}{5} n \) models the relationship between the number of nut trees planted and the number of fruit trees planted. Determine the number of nut trees planted if 135 fruit trees were planted.

b. \( -0.5 p+\frac{1}{2} p-2.75+\frac{2}{3} \)

Consider the line \( y=\frac{5}{2} x-3 \). Find the equation of the line that is perpendicular to this line and passes through the point \( (2,-5) \). Find the equation of the line that is parallel to this line and passes through the point (2, -5). Note that the ALEKS graphing calculator may be helpful in checking your answer. Equation of perpendicular line:

Your answer Is Incorrect. \( 9 \times(3+4)=(\square \times 3)+(\square \times 4) \) Use the distributive property to fill in the blanks below.