Rewrite k is less than 12 using >,

This is fairly simple 12>k (12 is more than k) or k<12 (k is less than 12)

K is less than 12, so if you put k first, it would be written as k < 12.

However, you are needing to use >.

Therefore the answer is

12 > k (This says that 12 is greater than k, but it can also be said as k is less than 12, if read backwards)