Ms.smith got an 8% cost-of-living raise of $20 per week.
问题描述：
Ms.smith got an 8% cost-of-living raise of $20 per week.
What is Ms.Smith's new weekly salary?
怎么算?
答
if 8% of Smith's previous weekly salary is $20 then,
Smith's previous weekly salary is $20/0.08=$250
so his new weekly salary would be $250+$20=$270
this is what i guess...not sure sorry...