Solve the following logarithmic equation. Be sure to reject any value of \( x \) that is not in the domain of the original logarithmic expression. Give the exact answer. \[ \log _{2}(3 x+9)=5 \] Solve the equation. Select the correct choice below and, if necessary, fill in the answer box to complete your choice. A. The solution set is \( \{ \) (Type an integer or a simplified fraction.) C. There are infinitely many solutions. C. The solution.

Which equation illustrates the identity property of multiplication? \( \begin{array}{l}(x+y i) \times z=(x z+y z i) \\ (x+y i) \times 0=0 \\ (x+y i) \times(z+w i)=(z+w i) \times(x+y i) \\ (x+y i) \times 1=(x+y i)\end{array} \)

Which expressions are equivalent to \( \frac{3}{5} x+3 \) ? Select all that apply. \( \begin{array}{ll}\text { QA. } 2+\frac{2}{5} x+1 & \text { ロB. } 2+\frac{x}{5}+1 \\ \square \text { C. } \frac{4}{5} x-\frac{1}{5} x+3 & \text { ロD. } \frac{2}{5} x+3 \frac{3}{5} x-1 \\ \text { पE. } 2+\frac{3}{5} x+1 & \text { ロF. } \frac{2}{5} x+3 \frac{1}{5} x\end{array} \)

Look at the replacement set below. \[ \{0,4,5,13\} \] Which number from the replacement set is \( a^{\text {don }} \) solution of the inequality \( 8 \geq 5+x \) ? \( \begin{array}{llll}\text { A. } 0 & \text { B. } 4 & \text { C. } 5 & \text { D. } 13\end{array} \)

11. Эгерде \( \left(7^{x}+7^{x}\right)^{3}=56 \) болсо, анда \( x= \) ? А) 1 Б) \( \frac{2}{3} \) В) \( \frac{1}{3} \) Г) \( \frac{1}{6} \) Д) \( \frac{1}{9} \)

An angle measures \( 82^{\circ} \) more than the measure of its supplementary angle. What is the measure of each angle? \[ \square^{\circ} \text { and } \square^{\circ} \]