Ken, your result is wrong !
Perimeter is 30"x3.14=94,2"
Converted in inches 94.2"x12=1130.4'
The brick length is 8' and the space betwin every two bricks is 2"=24'
The number of brics is equal to number of spaces because the circle is closed curve so we have to divide the perimeter of the circle on to the length of the brick + the length of the space and will receive the number of bricks( which is equal to number of spaces .
So 1130.4/32=35.325 bricks and exactly the same number of spaces
My previous result was 35.316309 is slightly different ( not significantly)because I'm from Europe and every time convert to metric when calculate something :)