For the function below, (a) find the vertex; (b) find the axis of symmetry, (c) determine whether there is a maximum or a minimum value and find that value, and (d) graph the function. \( f(x)=2 x^{2}+10 x+15 \) (a) The vertex is (Type an ordered pair, using integers or fractions.)

(2) \( \frac{32 x^{3} y^{4}-48 x^{4} y^{6}-24 x^{3} y^{6}}{8 x^{3} y^{4}} \)

\begin{tabular}{|l|}\hline 6) ¿Cuál es el \% volumen de una \\ solución que resulta de agregar 15 ml \\ de limón en 185 ml de agua? \end{tabular}

Write an equation in \( A x+B y=C \) form for this line. Use integers for \( A, B \), and \( C \).

\( \left. \begin{array} { | l } \hline \text { H } \\ \hline \end{array} \right. \)

Solve the system by back substitution. \( \begin{array}{l}7)+4 y+5 z=3 \\ 4 y+3 z=0 \\ 2 z=8 \text { B) }(-5,-3,4) \\ \text { A) }(-6,-3,4)\end{array} \)