What is the length of AB?

Asystem of equations has 1 solution.if 4x-y=5 is one of the equations , which could be the other equation ?

Cody was 165cm tall on the first day of school this year, which was 10% taller than he was on the first day of school last year.

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