Due to an accident on the highway, the Stanford family is delayed driving to their weekend destination. Their average speed is 30 miles per hour for the first portion of their trip as they come upon the accident site. After passing the accident site, their average speed increases to 50 miles per hour. The Stanford family can express their average speed for the entire trip as 30x+50(x+2)2x+2. What is the meaning of the parts of this rational expression in the context of the situation? Select from the drop-down menus to correctly complete the statements. The numerator of the rational expression represents the Stanford family's Choose... . The denominator of the rational expression represents the Stanford family's