Solve the Problem $\frac { 1 } { 9 } \text { million per year }$

Short Answer

Solve the problem.
-In 1980, the population of a city was 5.5 million. By 1992 the population had grown to 6.5 million. Find the average rate of change in population from 1980 to 1992..
A) $\frac { 1 } { 9 } \text { million per year }$
B) $\frac { 1 } { 12 } \text { million per year }$
C) $\frac { 1 } { 14 } \text { million per year }$
D) $\frac { 13 } { 24 } \text { million per year }$