The diameter (d) is 28 inches long.
d = -196
equals D repeater
2d+1=29 2d=29-1=28 d=28/2=14
That 8 might equal D. Trashed. "Eight Equals D" is: 8=D Which is a penis smiley -.- ~ Skullcandy88
(It's a penis) 8=====D 8 = balls D = head
128
It Equals 28. If You Do 7x4 It Will Say 28.
40-n equals 28 = 12
112
30. 28 x 30 = 840
28 = 1 x 28, 2 x 14, 4 x 7.
7x4 equals 28.