T(n)=6-1=5
that means all terms are 5 because n does not appear on the right hand side.
However, if T(n)=6n-1, then
first term = T(1)=6(1)-1=5,
but second term T(2)=6(2)-1=11...
Yup, the amount of 0's is the exponent. for example 1000= 10^3, hope this helped :)
Its either 3 or 2
the third way matches only if there's another reference line
I'll go with 3