BIB Identify the radius and the center of a circle whose equation is (x - 5)2 + y2 = 81.
The radius of the circle is
units.
The center of the circle is at?

1. isolate the variable, in this case, d. subtract 35.5 on both sides of the equation.2. 52 subtracted by 35.5 is 16.53. therefore your answer would be d= 16.5this is the basics of pre algebra, isolating variable through adding, subtracting, multiplying, and dividing, if you have any other questions to ask just comment!