9514 1404 393
Answer:
100
Step-by-step explanation:
The sum of n terms of a geometric series with first term a1 and common ratio r is ...
Sn = a1×(r^n -1)/(r -1)
Here, we have ...
Sn = 1258, r = 1.05, n = 10, so the value of a1 is ...
a1 = Sn(r -1)/(r^n -1) = 1258(1.05 -1)/(1.05^10 -1) ≈ 100
The number of shoppers at the mall the first day was 100.
