Find the midpoints of the segment with the endpoints (-0.8,1.3)and (0.4,-0.8)

(hurry! ) which expression is equivalent to the following complex fraction?

Find the number of real number solutions for the equation. x2 + 5x + 7 = 0 0 cannot be determined 1 2

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