Answer:Okay, I will answer the questions based on the assumption that the bar graph is about the number of students in different grades. 1. What are the two quantities involved in the problem?The two quantities involved are the grade levels (e.g., 1st, 2nd, 3rd) and the number of students in each grade. 2. In what part of the bar graph are these two quantities can be written?The grade levels are typically written along the horizontal axis (x-axis), and the number of students is written along the vertical axis (y-axis). 3. What scale can be used to represent the data?A scale that represents the number of students, such as increments of 5 or 10, depending on the range of student numbers. 4. What are the important labels that should be included in the graph?Important labels include: - Title of the graph (e.g., "Number of Students in Each Grade")- Labels for the x-axis (Grade Levels)- Labels for the y-axis (Number of Students)- Grade levels (e.g., 1st, 2nd, 3rd)- Scale on the y-axis (e.g., 0, 5, 10, 15...)