6. A coffeehouse sells a pound of coffee for R9.75. Expenses are R4500 each month, plus R4.25 for each pound of coffee sold. (i) Write a function \( R(x) \) for the total monthly revenue as a function of the number of pounds of coffee sold. (ii) Write a function \( E(x) \) for the total monthly expenses as a function of the number of pounds of coffee sold. (iii) Write a function \( (R-E)(x) \) for the total monthly profit as a function of the number of pounds of coffee sold.
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- Selling price per pound of coffee: R9.75 - Fixed monthly expenses: R4500 - Variable expense per pound of coffee: R4.25 Show more…
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