Okay, let’s tackle this. So Marny has 40 years of experience in interior design, which is a significant amount of time. According to the ASID website, the average salary for an interior designer in the US is around $55,000 per year. However, experienced designers like Marny can charge higher rates. Considering her location in Sacramento, California, which is a hub for design professionals, and her extensive experience, I would estimate her hourly rate to be around $125. This is slightly lower than the average salary, but taking into account the fact that she is an owner/designer and has a strong educational background, I think this rate is reasonable.