If a1 =9 and an = -2an-1 then find the value of a4

Is it greater than or less than7*3_9*2

Prism m and pyramid n have the same base area and the same height. cylinder p and prism q have the same height and the same base perimeter. cone z has the same base area as cylinder y, but its height is three times the height of cylinder y. the figures and have the same volume.

15 points what is the end behavior of this graph? & what is the asymptote of this graph?