Okay, so Diane has a mix of web development and audio engineering skills. Her experience and proficiency in programming languages like Html, Jquery, Css, Javascript, Ruby, and Sql are in demand. However, her audio engineering skills are less common in the job market. Considering her skills, I'd estimate her hourly rate to be around $100, which is on the lower end of the scale for web developers. This rate is also influenced by her location in the United States, where the cost of living is relatively high. To give you a better idea, here are some average hourly rates for web developers in the US: $75-$150. Since Diane's skills are not extremely rare, I'm not going to estimate her rate to be on the higher end of the spectrum. Instead, I'm choosing a more conservative estimate of $100 per hour.