5. A family of 8 went to the movies and spent a total of \( \$ 95 \) on tickets. Each child's ticket cost \( \$ 10 \) and each adult ticket cost \( \$ 15 \). Part A: Write a system of equations that represents this situation. Define your variables. art B: How many children are in the family?

iraficar la siguiente \( y=x^{2}+4 x-5 \)

Simplify each expression. Assume that the variables represent any real numbers. Use the absolute value button only when necessary. (a) \( \sqrt{y^{16}}=\square \) (b) \( \sqrt{x^{18}}=\square \)

\( 3z^{3}<9x \)

Multiply. \[ \begin{array}{l}(\sqrt{2}+7 \sqrt{5})(6 \sqrt{5}+\sqrt{2}) \\ \text { Simplify your answer as much as possible. }\end{array} \] II .

Simplify the expression. Assume that the variable is unrestricted and use absolute value symbols when necessary. \[ \sqrt{y^{2}-2 y+1} \]