The formula k= 5/9 (F-32)+273.15 converts temperatures from degrees Fahrenheit F to Kelvin K. An object in a laboratory is cooled to 25 Kelvin. What is the temperature of the object in degrees Celsius?

Which conjunction is disjunction is equivalent to the given absolute value inequality? |x+2|< 18

Which graph represents an even function?

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).