Look at the inequality below. \( -2 x \leq 6 \) Which of these best describes the solution of this inequality? \( \begin{array}{ll}\text { A. } x \geq-3 & \text { B. } x \leq-3 \\ \text { C. } x \geq 3 & \text { D. } x \leq 3\end{array} \)

Considere a equação: \( 2 x^{2}-10 x+5=0 \), e sendo \( S \) o número que indica a soma entre as raizes e P o número que indica o produto entre as raízes. De acordo com a informação a o valor de \( \frac{P}{S} \) é: \( \begin{array}{lllll}\text { a) } 2 & \text { b) } \frac{1}{4} & \text { c) } 3 & \text { d) } \frac{1}{2} & \text { e) }-2\end{array} \)

Find the exact value of the logarithm without using a calcula \( \log _{5} 125 \) \( \log _{5} 125=\square \) (Type an integer or a simplified fraction.)

Use properties and mental math to sub \( \begin{array}{l} 382.5-141.9= \\ 382.5-+0.1=240.5 \\ +0.5\end{array} \) \( \begin{aligned} 382.5-141.9 & = \\ 382.5-\square & =240.5 \\ \square+0.1 & =\square\end{aligned} \)

Evalúa \( b-\left(-\frac{1}{8}\right)+c \), donde \( b=2 \) y \( c=-\frac{7}{4} \)

Write the expression in the standard form \( \mathrm{a}+\mathrm{b} i \). \( \qquad-6+4 i)-(8-3 i) \) \( (-6+4 i)-(8-3 i)=\square \) (Simplify your answer. Type your answer in the form \( a+b i \).