1. Keith does a weekly exercise program consisting of cardiovascular work and weight training. Each week, he exercises for at least 7 hours. He spends at most 9mhours on weight training. He spends at most 5 hours doing cardiovascular work. Let x denote the time (in hours) that Keith spends doing cardiovascular work. Let y denote the time (in hours) that he spends on weight training. Shade the region corresponding to all values of x and y that satisfy these requirements.
Make a graph and shade!
thanks so much!!!

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