Not quite sure about the answer but it seems simple. Please answer!

5x + 2 = 12 solve the following equation. then place the correct number in the box provided.

If the endpoints of the diameter of a circle are (8, 6) and (2,0), what is the standard form equation of the circle? a) (x + 5)2 + (y + 3)2 = 18 (x + 5)2 + (y + 3)2 = 3.72 (x - 5)2 + (y - 3)2 = 18 d) (x - 5)2 + (y - 3)2 = 32

52 cm radius = diameter = area = circumference = circumfer