4~ Please help. Which best describes the three-dimensional figure obtained from rotating the figure around the y-axis?

Consider circle o, where and . m∠bpd °. °.

The scatter plot shows the number of animal cells clara examined in a laboratory in different months: plot ordered pairs 1, 20 and 2, 60 and 3,100 and 4, 140 and 5, 180 what is the approximate predicted number of animal cells clara examined in the 9th month?

Find the center of the circle that can be circumscribed about efg with e(4,4) f(4,2) g(8,2)