Question 164179
Let Kathleen's previous weekly salary = x

so Kathleen's weekly salary now  
= {{{x + (8/100)*x}}} 
= x + 0.08x
= 1.08x


1.08x = 237.60
<=> x = 237.60/1.08
<=> x = 220


so, Kathleen's previous weekly salary = $220