Chlorine is a gas for all temperatures greater than -31*f. if f represents temperature in degrees fahrenheit, the inequality f> -31 represents the temperatures for which the chlorine is a gas. solve 9/5c +32> -31 to find the temperatures in degrees celsius for which chlorine is a gas.

Acentral angle measuring 160 degrees intercepts an arc in a circle whose radius is 4. what is the length of the arc the circle formed by this central angle? round the length of the arc to the nearest hundredth of a unit. a) 4.19 units b) 6.28 units c) 12.57 units d) 12.57 square units