the circumference of the hub cap of a tire is 81.51 centimeters, find the area of this hub cap. use 3.14 for pi. use pencil and paper. if the circumference of the hub cap were smaller, explain how this would change the area of the hub cap.

Someone answer asap for ! 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