The mean of 3 numbers is 12 if two of the numbers are 14 and 16 find the third number​

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).

Select the number of ways in which a line and a circle can intersect

Which strategy is used by public health to reduce the incidence of food poisoning?