The population of a city is 45,000 and decreases 2% each year. if the trend continues, what will the population be after 15 yrs? a) about 14,746 b) about 33,236 c) about 41,000 d) about 47,504

In order to get the answer, let's make the solution first:
Given: 45,000 = current population
           2% / year = decrease
            ? = population after 15 years
First, we get 2% of 45, 000 and the result is 900.
# of years
1   :   44, 100
2.   :  43, 218
3   : 42, 353.64
4  :   41, 506.57
5  : 40, 676.44
6   : 39, 862.91
7 : 39,065.65
8  : 38,284.34
9   : 37, 518.65
10  : 36,768.28
11    : 36, 032.91
12  : 35, 312.25
13  : 34, 606.01
14  : 33, 913.89
15:  33, 235.61
So the answer would be option B. 33, 236. 
Hope this is the answer that you are looking for. 

10.4 is the answer for you