A company makes a greenhouse that is shaped like a rectangular prism on bottom and a half cylinder on top.
The rectangular prism has a base that is 3 x 9 m and a
height of 2 m. What is the volume of this greenhouse?
Round to the nearest cubic meter.
Can someone help please explain this

Luigi is the first person to finish a 5k race and is standing 13 feet beyond the finish line. another runner, mario, is still running the race and has approximately 24 feet before he reaches the finish line. what is the distance between mario and luigi? explain through words, numbers or pictures how you found the answer.