¿ Cómo pueden determinar la masa de x L de cada sustancia ?

Which symbol makes the steam in true 0.7 > 0.77

To determine the number of deer in a forest a forest ranger tags 280 and releases them back

The figures below are made out of circles, semicircles, quarter circles, and a square. find the area and the perimeter of each figure and give your answers as a completely simplified exact value in terms of π (no approximations).