In 1990 the population of boston massachusetts was 574,283.in 2000,the pipulation was 589141.what is the percent of change in population?

The percent of change in population was 2.58%

Step-by-step explanation:

Percentage calculations

The percent of change of some quantity is the relation between the difference of its values with respect to the original value. That is, if something had a value of and then it had a value of , the change is , the ratio of change is

And the percent of change is

If this number is positive, the change was an increase. If is negative it was a decrease

The population of Boston Massachusetts was 574,283 and changed to .

The percent of change is

The percent of change in population was 2.58%

answer: 25.4 units

step-by-step explanation: radius = 12.7 units

diameter = twice the radius

diameter = 12.7 x 2

= 25.4