The answer is 91
, r6 F7 @8 A$ b2 q0 Ewww.tvboxnow.com1 row 3x4+1x3=15
7 H5 p9 `8 z8 k! r4 O3 o; A# uwww.tvboxnow.com2 row 4x5+2x4=28
$ B! |; z @) }3 V% L vwww.tvboxnow.com3 row 5x6+3x5=45; }+ b, d* p% r/ Q9 N
4 row 6x7+4x6=66
/ F$ _4 F# e( O. t# mtvb now,tvbnow,bttvb5 row 7x8+5x7=91  |