4. The histogram below shows data on monthly salaries at a small engineering firm. (a) How many employees are there? (b) What percentage of employees make less than $10,000 per month? (c) Write a sentence or two describing what is revealed by the graph. Monthly salary of employees 30 28 26 24 22 20 18 16 10 5000 10,000 15,000 20,000 25,000 30,000 Monthly Salary in USD 504 NO 0 640 Number of employees

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