12
18.6
13.7
10
15
41.7
18
14
16
5
6.7
8
2.5
3
4.5
4.8
6
9
13
28.8
5.3
Y=2, x=3.5
Y=4, x=3.33
Y=3.33, x=4
24
26.4
28.2