Let n be the number in thousand of residents who watched a parade what does n=19 means in this situation

In the diagram below what is the approximate length of the minor arc ab

Write an equation for the function that includes the points (1,4/5) and (2,2/3)

The circumference of a redwood tree trunk is 20π ft, and it is 100 ft tall. what is the approximate volume of the redwood tree trunk? 1,000π ft3 10,000π ft3 4,000π ft3 40,000π ft3