1. Summarize the events of the battle of Soissons

32 What is the simplest form of \( \frac{2 a-(a+b)}{a^{2}-b^{2}} \) ? \( \begin{array}{ll}\text { A } a+b & \text { B } a-b \\ \text { C } \frac{1}{a+b} & \text { D } \frac{1}{a-b}\end{array} \)

The profit at a lunch bar increased at a steady rate of \( 12 \% \) per year. This year the profit is \( 85,000 \mathrm{vt} \) How many years will it take the profit to exceed \( 400,000 \mathrm{vt} \) ?

Tentukanlah himpunan penyelesaian dari pertidaksamaan berikut \[ \frac{x+3}{x^{4}-4} \geq 0 \]

(a) The boys told us they were leaving at 8 p.m.

\( 382 + \ldots = 400 \)