Hey, can someone help me :3?

Find the area. The figure is not drawn to scale.

Find the roots of the equation below. x^2 - 6 + 9 = 0

Amachine part consists of a half sphere and a cylinder, as shown in the figure. the total volume of the part is π cubic inches.

Aweekly newspaper charges $72 for each inch in length and one column width. what is the cost of an ad that runs 2 column inches long and 2 columns wide? its not 288