What’s the answer I need it ASAP

The square pyramid has a volume of 441 cubic inches. what is the value of x? 1/7x is the height x is the base

Hurrya vegetable garden and a surrounding path are shaped like a square that together are 11ft wide. the path is 2ft wide if one bag of gravel covers 9 square feet how many bags are needed to cover the path

Pls never taught i’m really confused and i rlly need