Answer:
Rachel may earn up to 8% more money in her life.
Step-by-step explanation:
Exercise is a healthy way to boost brain activity and keep the body functioning properly. The lack of excitement with Randall regarding exercise may affect her health coupled with laxity that she may develop from this as compared to Rachel who "can't get enough". Rachel would increase good health and fitness with exercise and perform better than Randall in most activities(including money) as far as we know.