What is the circumference of a circle with a diameter of 1?

James was playing a game with his friends. he won 35 points. then he lost 15, lost 40 and won 55. how did he come out

The boiling point of water at an elevation of 0 feet is 212 degrees fahrenheit (°f). for every 1,000 feet of increase in elevation, the boiling point of water decreases by about 2°f. which of the following represents this relationship if b is the boiling point of water at an elevation of e thousand feet? a) e = 2b - 212 b) b = 2e - 212 c) e = -2b + 212 d) b = -2e + 212

Someone me i need with this stuff