Answer:
6n - 5 = c, 6n - 5 + n, 7n - 5
Explanation:
Pretty much whatever Nina has, Clayton has 6 times that and minus 5. n = Nina, c = Clayton. 6n - 5 + n should also work if they are asking to add both, which can be simplified to 7n - 5.
Hopefully, this helps since the question is kind of worded to confuse, but the answer I gave should be good.