5
1) Let's solve that expression step by step
[tex]\frac{35}{2^3-1}[/tex]
2) As we have an exponent, let's firstly solve this
[tex]\frac{35}{8^{}-1}[/tex]
Now proceeding with the subtraction, and then divide it:
[tex]\frac{35}{7}=5[/tex]
3) Hence, the answer is 5
