Q4: Cost behaviour 17.5 Marks] Hayley is a professional photographer based in Byron Bay who specialises in family portraits. As part of your business advisory services to help support her in running her business you are preparing a detailed cost analysis. She has given you a list of her key costs. Rent Electricity Lighting and photography equipment Photo editing software Advertising Insurance Required: 1. For each cost indicate whether it is likely to be fixed, variable or mixed over the next 12 months. If mixed, outline whether it is predominately fixed or variable, (5 marks] 2. What cost object (not from the list above) would you consider most important for Hayley to calculate to effectively run her business and why? (2.5 marks