Can anyone help with setting up this simplex problem?

A political mailer has economy,military, and environment. Total number of books is less than 100. For the target group, there will be a positive impact proportional to 5 times on the economy, positive impact proportional to 2 times on the military and a negative impact proportional to -4 on the environment. the number of pages on the environment exceed the number of military by at least 5 and the number on the economy exceed the military by at least 5. find the number of pages that should be devoted to the economy, the military, and the environment.