\( 1 \leftarrow \) A 6 ft board is to be cut into three pieces, two equal-length ones and the third 9 in. shorter than each of the other two. If the cutting does not result in any length being lost, how long are the pleces? The first two pieces are each \( \square \) in. long.

Solve \( -6+x=-10 \) Solve \( -3 k-7=50 \)

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...

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

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

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