Read the information and answer the following 3 questions.
Larry’s Lawn Service provides lawn care in a planned community where all lawns are approximately the same size. At the end of May, Larry prepared his June budget based on mowing 500 lawns. Since all of the lawns are similar in size, Larry felt that the number of lawns mowed in a month would be the best way to measure overall activity for his business. At the end of June, Larry actually mowed 600 lawns.
flexible budget format for Larry’s Lawn Service
Number of lawns(Q)               Revenue/Cost Fomulas
Revenue                                 75Q
Expenses
  Wages and Salaries             5000+30Q
  Gasoline and supplies          9Q
  Equipment maintenance       3Q 
  Office and Shop Utilities      1000
  Office and shop rent            2000
  Equipment Depreciation      2500
  Insurance                            1000
What should the total expenses be in a flexible budget for 600?
A、36,200
C、38,200