The number could have been 8.699999999 so yeah there
For the mode to be 6, there has to be at least two 6s.
For the median to be 6, with two 6s, there must be at least one number above 6.
For the mean to be 6, the sum is 30, so the three remaining numbers must total 18.
Here you go!! Hope my answer also assists you in the future!! :))