The answer is 31,500. Let's clarify some things : 1% of 45,000 is 450 Maybe you're wondering why , it's actually very simple . Just move the decimal to the left once if you want to find 10% , move the decimal twice if you want to find 1%. We now that 1% equals 450. Then 2% equals to.... Well just add another 1% . 450 + 450 or 450 times 2 Which equals 900. Now we want to find what's the population after 15 years. 900 times 15= 13,500 But that's not the answer .... That's what is decreasing. 45,000 - 13,500= 31,500 That's why the answer is 31,500.
