What is one third of 3/4 of 80?

Select One
A:
60
B:
30
C:
20
D:
10

Find the volume v of the solid obtained by rotating the region bounded by the given curves about the specified line. y = x â’ 1 , y = 0, x = 5; about the x-axis v = sketch the region. sketch the solid, and a typical disk or washer.