Solve (tan x)(2 sin x + 1) = 0 given that 0 < x < 2pi

In the figure shown below, m < 40 and ab =8. which equation could be used to find x?

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.

If each bricks costs and he can only buy one brick how much will it cost him to get the material to put around the outside of his garden?