Question

7. A major US city reports a 12% increase in decoration sales during the yearly holiday season. If decoration sales were 8 million in 1998, how much did the city report in total decoration sales by the end of 2004?

Answer 1

This really looks like a multiplication here. Let me see if this can be helpful to you: If we proceed like this:
8 million * 0.12 = increase /year
The only thing you need to do now is multiply it with number of years between 1998 to 2004 then add it to 8 million. That is how you can solve it