D. 129pi cm^squared
this is the answer that was cut off

 OPTION C

Step-by-step explanation:

The formula for calculate the surface area of a cone is shown below:

Where r is the radius, l is the slant height and SA is the surface area of the cone.

Substitute the values into the formula shown above. Therfore, the surface area of the cone is:

 cm²

answer: the answer is (b) amie should have multiplied

step-by-step explanation: given a sphere and a cylinder with same radius and height.

let, 'r' be the radius of the cylinder and sphere and 'h' be the height of the cylinder. according to the question,

r = h.

now, the volume of the sphere will be

and the volume of the cylinder will be

therefore, we have

thus, ammie should have multiplied the volume of the sphere

honesty mood

step-by-step explanation: