Find the inverse of this function (please show steps all of them)

Which of the following of the following sets of side lengths could not form a triangle?

What is the point-slope equation of a line with slope -5 that contains the point (6,3)

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