Question: Tim's website got 100 visitors a day for the first 6 days and then on the last day of the week it got twice as many visitors as every other day combined.  If he gets $.01 per visit how much did he make that week?
Solution:
In the first 6 days, he got 6*100=600 visits
So on the 7th day, he got 600*2=1200 visitors
So he got a total of 1200+600=1800 visitors
That means he made 1800*.01=$18
Answer: 18