A new shopping mall records 120 total shoppers on their first day of business.
Each day after that, the number of shoppers is 10% more than the number of shoppers the day before.
What is the total number of shoppers that visited the mall in the first 7 days?
Round your final answer to the nearest integer.
I know I could just dumbly math it out, but is there a better way?
Could somebody give me a hint?
Total number =
120 [ 1- r^n] / [ 1 - 1.10] where r =1.10 and n = 7
120 [ 1 - 1.10^7 ] / [ 1 -1.10] ≈ 1138 people
So you use the formula?