Hi can you help me pls I would very much appreciate it!!!

Which of the following would represent the sum of 3 consecutive integers if x is the first integer?

45% of the trees in a park are apple trees. there are 27 apple trees in the park. how many trees are in the park in all?

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?