\( \begin{array}{l}\text { A local high school held a two-day fundraiser selling lunches. The equations shown } \\ \text { represent the amount of money the school collected during the two days. }\end{array} \) \( \left\{\begin{array}{l}12 x+4 y=152 \\ 32 x+12 y=420\end{array}\right. \) In the equations, \( x \) represents the cost of a chicken lunch and \( y \) represents the cost of a vegetarian lunch. Which is the cost of the vegetarian lunch?

Solve the equation. If necessary, round to the nearest thousandth. \( 7^{x+3}=6^{x} \) A. \( \{37.87\} \) B. \( \{-39.33\} \) C. \( \{-37.87\} \) D. \( \{-36.41\} \)

Un colega de profesión le sugirió a José que aumentara el valor del paquete básico a Q2,500. De hacerlo, ¿cuántos paquetes debería vender para cubrir su inversión inicial en equipo fotográfico y el costo del seguro durante los 3 años de garantía extendida? \( 2,500 p>36,036 \rightarrow p>\frac{36,036}{2,500} \rightarrow p \perp \)

Simplify. \[ \frac{10 y^{2}-25 y}{5 y^{2}-15 y} \]

a) \( 7 x+(3 x-5)=6 x-9 \)

Simplify. \[ \frac{3 x^{2}-6 x}{4 x^{2}-8 x} \]