PROBLEMS 1. AGE 20 INT. 60 RHR 70 2. RHR 40 AGE 15 INT. 90 3. AGE 30 INT. 70 RHR 50 4. AGE 10 INT. 80 RHR 60 5. RHR 55 AGE 15 INT. 85 6. INT. 75 RHR 60 AGE 80