population growth can be modeled using the formula

p=cr^t, where C is the initial population, r is the growth factor, and t is time in years

p = 20,030

C = 16,700

t = 7 years

r = ?

20030 = 16700*r^7

r^7 = 20030/16700

r = 1.026

the 7 year growth factor is 1.026.

the percent growth rate PR in 7 years is calculated by the formula

PR = ((p - C)/C)*100*(1/7)

PR = ((20030 - 16700)/16700)*100*(1/7)

PR = (3330/16700)*100*(1/7)

PR = %19.94(1/7)

PR = 2.8486%

The population of Mathville grew %19.94 in the 5 years or at rate of 2.8486% annually.