Is \( (10,8) \) a solution to this system of equations? \( \begin{array}{c}10 x-15 y=-20 \\ 14 x-19 y=-12\end{array} \) yes no

2) Eduardo ran 26 kilometers less than Jennifer last week. Eduardo ran 18 kilometers. How many kilometers did Jennifer run?

Question simplify: \( \sqrt[3]{\frac{625 u^{5}}{y^{12}}} \)

9) \( \frac{x^{2}+7 x+6}{x+1} \div \frac{10 x+60}{x+1} \) \( \begin{array}{ll}\text { A) } x-5 & \text { *B) } \frac{x+1}{10} \\ \text { C) } \frac{10 x}{x+9} & \text { D) } x-1\end{array} \)

Diketahui fungsi \( \mathrm{f}(\mathrm{x})=\mathrm{x}^{2}+\mathrm{x} \) dan \( \mathrm{g}(\mathrm{x})=\frac{2}{\mathrm{x}+3} \) maka (f.g) adalah...

True or false \( 4: 3 x=32: 72 \) if \( x=3 \)