30
220 inches is longer than 18 feet. There are 12 inches in a foot. This means that 18 feet is 18 * 12 inches, or 216 inches. 216 < 220.
Well, 2/3 is 12/18 which is greater than 11/18.
Yes.
18
36
18 inches is greater than 18 cm
10, 12, 14, 16
6, 12, 18 and so on.
39
They are {13, 14, 15, 16, 17}.
No. 18 doesn't have a factor greater than itself.