Someone show your work

what is the surface area of the figure?

a.
270 cm2

b.
320 cm2

c.
135 cm2

d.
160 cm2

What is the volume of the sphere shown below with a radius of 3?

Identify the converse of the following conditional: if a point is in the first quadrant, then its coordinates are positive. if the coordinates of a point are not positive, then the point is not in the first quadrant. if the coordinates of a point are positive, then the point is in the first quadrant. if a point is in the first quadrant, then its coordinates are positive. if a point is not in the first quadrant, then the coordinates of the point are not positive.

What is the result of the following division?