How can I find "y" at "x=28" with 3rd degree?
x y
0 0
10 0.2
15 0.5
20 0.9
22.5 1.2
25 1.6
30 2.2
35 3.1
40 4.1
45 5.2
50 6.5
75 13.9
100 24.9
150 58.3
200 97.6
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