34. x^2+y^2=16
35. (x+2)^2+(y-3)^2=256
36. (x+2)^2+(y+6)^2=64
37. x^2+y^2=81
Blanche Kelso Bruce (March 1, 1841 – March 17, 1898) was a U.S. politician who represented Mississippi as a Republican in the U.S. Senate from 1875 to 1881; of commixed race, he was the first elected ebony senator to accommodate a full term.