What is the solution of the equation w – 8 =5? Show your work

Which expression is equivalent to the given expression? Show Your Work
5x -2
A. 2-5x
B. 3-5+2x
C. 5x-2x
D. 2x-2+3x

Solve for r. Show your Work
/5= -9

Step-by-step explanation:

first one: w-8 =5

reverse it-  8+5= 13         so 13-8= 5

second one: 5x-2

2x-2+3x  << group together the x's

2x+3x=5x and you'll end up with 5x-2

last one: r/5=-9

again, reverse it-  -9 x 5 = -45

a negative times a positive = a negative

The standard equation of a circle is:

(x-h)^2+(y-k)^2=r^2, where (h,k) is the center of the circle and r is the radius.

We are given two endpoints of the diameter, so the midpoint of these points is the center of the circle.  (2,8) and (2, -4)  so the midpoint of the circle is:

((2+2)/2, (8-4)/2)

(2,2)

The radius is just half the length of the diameter.  The length of the diameter is 8--4=12 so the radius is 6 units, so our circle equation is:

(x-2)^2+(y-2)^2=36