in the descrpition

Question

The population of a small town in 1980 was approximately 4,780 residents. In 2010 , the population was approximately 3,346 residents. At approximately what rate did the population of the small town change from 1980 to 2010?

A The population increased at a rate of approximately 0.7% per year.

B The population increased at a rate of approximately 1% per year.

C The population decreased at a rate of approximately 1% per year.

D The population decreased at a rate of approximately 0.7% per year.

Answer 1

Well, if the numbers are down, A and B are out. Given the two other choices

4780 - 3346 = 1434

1434/4780 = 0.3

0.3/30 = 0.01 = 1%

C

Answer 2

(3346 - 4789) / (2010 - 1980) = ?