2.1 Martha decides to start a new business venture and bake chocolate muffins. She sells the muffins for R25,00 each. Her only fixed cost is paying her 16-year-old niece R500 a month to maintain the business' social media page. Her variable costs include the ingredients and the electricity. She calculated that the variable cost per muffin is R15,00. 2.1.1 Define the term fixed cost in the given context. (2) 2.1.2 Explain why electricity is classified as a variable cost. (2) 。。 2.1.3 Martha states that she will make R1 500 profit if she sells 200 muffins. Verify, showing all calculations whether her statement is correct. (6) 2.1.4 Martha performed calculations and drew up a table showing the total income and expense to make and sell muffins. The information is provided in TABLE 2 below. TABLE 2: TOTAL INCOME AND EXPENSES OF MARTHA'S MUFFINS NUMBER OF MUFFINS 0 20 40 60 80 100 INCOME (R) 0 500 1000 1 500 2 000 2 500 EXPENSES (R) 500 800 1 100 1400 1 700 2000 Use the ANSWER SHEET to complete the line graph for her business' expenses. (3) 2.1.5 Use the graph to determine the total number of muffins that Martha must sell to break even. (2) 2.1.6 While researching the selling price of muffins, Martha came across a 1.5 Mr Smuts does research to find out how satisfied the employees on his farm are with the current working conditions. He asks them to rate their job satisfaction on a scale of 0% to 100%. His findings of the results at two of the departments on the farm are shown below. Department A Department B 30 40 40 50 50 60 70 Job satisfaction % Use the diagram to answer the following questions. 80 30 90 90 1.5.1 Classify the given data as numerical or categorical. 1.5.2 Write down the value of the upper quartile (Q3) of department B. athe 100 414​