Elongation With change in Force

[Armando Arizpe]

Homework Statement

If said percentage of a maximum load (Max load 35N and 30% of that load) is held by a wire, by what percent of its length will it stretch?

Homework Equations

ΔL/L = FA/Y
Y = Youngs modulus

The Attempt at a Solution

(All values are random, just trying to understand the process)
My first attempt was to set up a proportion between the two forces and their respective elongation equations but I have not been able to get the correct answer

 

[haruspex]

My first attempt

Please post your attempt.