Shielded metal arc welding is more commonly know as which of the following

(hurry! ) which expression is equivalent to the following complex fraction?

Linda loans her friend $250 with a 5% monthly intrest rate. how much was the whole loan?

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