Mandatory prison for the aggravated assault. With no dangerous priors, 5-15. For the Aggravated Robbery, non-dangerous, prison is mandatory because of the priors. With one prior, non-dangerous, prison ranges from 3.5 to 16.25. The types of priors, the age of the priors and other factors will weigh concerning the potential penalties. I am only providing basic information that may or may not be accurate given the lack of information in your question. As the charges and the potential sentencings are substantial, you should truly consider retaining experienced counsel.