Given a square with vertices (0,1), (1,0), (0,-1), and (-1,0), in units rounded to the nearest whole, what is the perimeter of the square? A: 6
B: 4
C: 2
D: 1

Anyone know? will mark brainliest if you're correct!

Amanda went into the grocery business starting with five stores. after one year, she opened two more stores. after two years, she opened two more stores than the previous year. if amanda expands her grocery business following the same pattern, which of the following graphs represents the number of stores she will own over time?

A25- foot ladder leans against a building and reaches a point of 23.5 feet above the ground .find the angle that the ladder makes with the building