PERFORMANCE TASK 1: (20 PTS.) Directions: Observe any weighing scale available at home/ if none you can ask your parents or any member of the family to accompany you in store or market and observe if the weighing they use is calibrated or not the vendors. Write your observations below. Guide questions: 1. What type of weighing scale do they use? (5 points) 2. Is the weighing scale calibrated or not? Explain your answer. (5points) 3. Why is it important to use calibrated weighing scale? (10 points)​