Ann does a weekly exercise program consisting of cardiovascular work and weight training. Each week, she exercises for at least 10 hours. She spends at most 6 hours doing cardiovascular work. She spends at most 12 hours on weight training. Let x denote the time (in hours) that Ann spends doing cardiovascular work.
Let y denote the time in hours) that she spends on weight training. Shade the region corresponding to all values of x and y that satisfy these requirements.