Environmental Performance Index is a biennial index prepared by Yale University and Columbia University in collaboration with the World Economic Forum.
If  2,  7, 20,  x ,  110,  235,
Then,  7 x + 7√x = ?
66   70    97    ?       238    274
...20, 30, 40, 55, ?, 160
15     32      51      74     ?      134
...23   27    54    ?       195    231
...6Â Â Â Â Â Â Â Â Â Â Â Â Â Â 16Â Â Â Â Â Â Â Â Â Â Â 116Â Â Â Â Â Â Â Â Â 566Â Â Â Â Â Â Â Â Â 2272Â Â Â Â Â Â Â 6814
11Â Â Â Â Â Â Â aÂ...
1 1 84 27 981
...1331      1000            729       512       ?             216
...43    65    109    197    ?     725
462 478 510 558 ?
...
