PRACTICE DATA

EXER.1: CLICK HERE     EXER.2: CLICK HERE     EXER.3: CLICK HERE

EXER.4: CLICK HERE     EXER.5: CLICK HERE     EXER.6: CLICK HERE

EXER.7: CLICK HERE     EXER.8: CLICK HERE     EXER.9: CLICK HERE

EXER.10: CLICK HERE