If you look at a completed tessellation, you will see the original motif repeats in a pattern. One mathematical idea that can be emphasized through tessellations is symmetry. There are 17 possible ways that a pattern can be used to tile a flat surface or 'wallpaper'.
Related to liquidity: Liquidity ratio, Liquidity risk Liquidity In context of securities, a high level of trading activity, allowing buying and selling with minimum price disturbance.
The cash ratio is the most stringent and conservative of the three short-. term liquidity ratios (current, quick and cash). It only looks at the most liquid. short-term assets of the company, which are those that can be most easily used.