Write all final answers in simples \[ \begin{array}{l}\text { 23. } 32^{\frac{1}{8}} \cdot 32^{\frac{3}{8}}\end{array} \]

UMEROS REALES: 1) Resuelve extrayendo factores de los radicales \( \begin{array}{ll}\text { a) } \sqrt{48}+\sqrt{27}= & \text { b) } 9 \cdot \sqrt{12}-2 \cdot \sqrt{75}=\end{array} \)

a) \( \sqrt{48}+\sqrt{27}= \)

8 En vektor \( \vec{u}=(3, b) \) har längden \( \sqrt{13} \) l.e. Bestäm talet \( b \).

Rationalize the denominator and simplify. Assume that the variable represents a positive real number. \[ \sqrt{\frac{2}{w}} \]

A sewage treatment plant discharges a pollutant with a concentration of \( 18 \mathrm{mg} / \mathrm{L} \). The plant's total discharge is 0.15 MGD (millions of gallons per day). Determine the rate of pollutant released in pounds day. Give your answer accurate to at least two decimal places.