I hope this helps, I wrote the new equation each time you get a new number and where it should be placed
For everyone 4 feet he drops, 1 second will pass. (for everyone 1 second that goes by, he will be 4 feet lower)
12/3=4
4πr2
= 4×π×42
= 64π
= 201.06192982975 inches2
The answer should be the last one