Please help me before 12:23 I need ASAP

Does the point (1, sqrt 7) lie on circle shown.

Kira looked through online census information to determine the overage number of people living in the homes in her city what is true about kira's data collection?

The area of a rectangle is 10 cm^2. one side of the rectangle is x cm. express the perimeter of the rectangle in terms of x and show that this rectangle cannot have a perimeter of 12 cm. the perimeter of the rectangle in terms of x is __ cm