Six dollars is the only answer that seems correct using the graph. Hope this helped.
Paul's rate before the pay rise = 7.0
The increase = 4/100 * 7.0 = 0.28
Paul's rate after the pay rise = 7.0 + .28 = 7.28
9x(6+x)
54x+9x
43x
So in the end the answer after doing the work it will be 43x
The answer is, A. 13/2 = w/5
