A business incurred the following telephone expenses. Month 1: customer enquiries = 250 000, total cost = $425 000. Month 2: customer enquiries = 350 000, total cost = $575 000. Telephone costs are a semi-variable cost. What would the total telephone costs be for 305 000 enquiries?
- A$501 071
- B$507 500
- C$508 333
- D$518 500