Alex, a freelance editor, charges the rates shown in the table below to edit manuscripts. The cost per page increases as the quality of editing improves. Alex also gives a 5% discount if the entire amount is paid up front.

A 2-column table with 'Type of Editing' and 'Cost per page' as the column headings. Express Proofreading costs $4.00, Basic Proofreading - $4.95, Extended Proofreading - $5.95, and Deep Editing - $14.00

Question

Alex, a freelance editor, charges the rates shown in the table below to edit manuscripts. The cost per page increases as the quality of editing improves. Alex also gives a 5% discount if the entire amount is paid up front.

A 2-column table with 'Type of Editing' and 'Cost per page' as the column headings. Express Proofreading costs $4.00, Basic Proofreading - $4.95, Extended Proofreading - $5.95, and Deep Editing - $14.00

anonymous · Answer

Paris has a 15-page manuscript. The equation below shows the relationship between the total cost of editing 15 pages, T, and the cost per page, c, if she gets the 5% discount.

15c - 0.05(15c) = T

Using the equation, what is the best quality of editing that Paris can get done for a maximum of $171?

 Express proofreading

 Basic proofreading

 Extended proofreading

 Deep editing

anonymous · Answer

The number of bacteria in a sample increased by a factor of 2 every minute from 9:05 AM to 9:55 AM. The function below shows the number of bacteria in the sample f(x) after x minutes from 9:05 AM:

f(x) = 10(2)x

Which of the following is a reasonable domain for the function?

 0 ≤ x ≤ 10

 5 ≤ x ≤ 55

 0 ≤ x ≤ 50

 All positive integers