Discrete Math- Design

Hi could you please explain to me all the steps generously with a HANDWRITTEN NOTES. Thanks

that is all i got, if you have a difficulty it is oki, just close it, so someone with experience may answer . Thanks

6. For the following values of (v, k, r) either construct a design with those parameters or explain why such a design cannot exist. (i) (v,k,r) = (9,3,4), (ii) (v, k,r) = (9,6,8). 6. For the following values of (v, k, r) either construct a design with those parameters or explain why such a design cannot exist. (i) (v,k,r) = (9,3,4), (ii) (v, k,r) = (9,6,8)