A population of mice is increasing exponentially. On Monday there were 120 mice. One month later there were 132 mice. Write a function to model this situation. Determine the percent increase of the population of mice each month.

--- Percentage increase

Step-by-step explanation:

Given

Let

So, we have:

--- Monday

--- One month later

Required

The function

The function is represented as:

In , we have:

Rewrite as:

In , we have:

Substitute

Solve for b

Recall that:

Hence, the function is:

To get the monthly percentage increase (r), we have:

Compare to:

So:

Make r the subject

Express as percentage

it costs $20 to interview each person for a survey. find the cost to obtain a +- 3% margin of error.

step-by-step explanation:

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