ArtFun Inc. is investigating the possibility of providing an instructional program in ceramics. The office manager and the recreation program manager have collected the following information:

The local high school has a ceramics laboratory in its art area. It has work space for $30$ people and two kilns for firing students$$ ceramic projects. The laboratory is rented for $$75$ per hour. There is an additional firing fee of $$35$ per kiln for each time it is fired.