Which choice best describes the following sentence?

cassidy volunteered.

it is a complete and correct sentence.
it is a fragment that is missing a subject.
it is a fragment that is missing a predicate.
it is a fragment with a subject and verb but expresses an incomplete thought.

Harry is at the depot in dover and has deliveries to make in edinburgh, glasgow and aberdeen. from dover which of the deliveries is the shortest distance?

Extremely mega ultra important question! plss answer as fast as you can you will get 84 points! the area of this right triangle is half the area of which of these rectangles?

Acone is placed inside a cylinder. the cone has half the radius of the cylinder, but the height of each figure is the same. the cone is tilted at an angle so its peak touches the edge of the cylinder’s base. what is the volume of the space remaining in the cylinder after the cone is placed inside it?