Question

Help please!

Sean, 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. Sean also gives a 5% discount if the entire amount is paid up front.

Express proofreading: $2.00
Basic proofreading: $2.95
Extended proofreading: $3.95
Deep editing: $11.00

Michelle has an 85-page manuscript. The equation below shows the relationship between the total cost of editing 85 pages, T, and the cost per page, c, if she gets the 5% discount.

85c - 0.05(85c) = T

Using the equation, what is the best quality of proofreading that Michelle can get for a maximum of $161.50?