sueldo mensual de un vendedor de una marca de celulares se compone de monto fijo de \( \$ 400000 \) más una comisión de \( \$ 5000 \) por cada celular que nde en el mes. zué función permite obtener el sueldo \( S(n) \) del vendedor, en pesos, cuand nde \( n \) celulares en un mes? (A) \( S(n)=400000+\frac{5000}{n} \) (B) \( S(n)=400000+5000 \cdot n \) (C) \( S(n)=400000 \cdot n+5000 \) (D) \( S(n)=\frac{400000}{n}+5000 \)

\( f(x)=a x^{2}+(b+2) x-a+b \) fonksiyonu sabit fonksiyon olduğuna göre , \( \mathrm{f}(\mathrm{a}) \cdot \mathrm{f}(\mathrm{b}) \) değeri kaçtır ?

Solve the system of equations by the substitution method. \[ \begin{array}{l}4 x+3 y=45 \\ x=4 y-3\end{array} \]

Solve by completing the square. (Enter your answers as a comma-separated list. If there is no real solution, enter NO REAL SOLUTION.) \[ y^{2}+y-9=0 \] \( y=\square \)

Solve for \( x \) by completing the square: \[ x^{2}=-3 x+10 \] Determine the value of \( p \) if \( f(x)=x^{2}+p x^{2}-x+3 \) gives a remainder of 15 when divided by \( x-2 \).

12. Simplify \( \sqrt{a^{8} b^{6}} \sqrt{25 a^{4}} \sqrt{81 b^{2}} \)