If \( x \) and \( y \) are two positive numbers whose product \( 3 \sqrt{10} \) and whose sum is minimum, then \( x^{2}+y^{2}= \) a. \( 6 \sqrt{10} \) b. \( 10 \sqrt{10} \) c. \( 20 \sqrt{10} \) d. \( 14 \sqrt{10} \) e. \( 15 \sqrt{10} \)

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) \( \frac{1}{9} \)

Solve for \( z \) \[ \begin{array}{l}3 z=24 \\ z=\square\end{array} \]

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

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

The measure of an angle is eight times the measure of its complementary angle. What is the measure of each angle?