How do I change my line spacing to exactly 24 points on Works Processor?

I have an essay to write and the guidlines say in MLA format but instead of double spacing it says exactly 24 pts in line spacing. I have works processor so it doesn't have the options of Word, can someone hlep me plz???How do I change my line spacing to exactly 24 points on Works Processor?You should tell your teacher to stop being such a goof. And starting being such an un-goof.