PLEASEE ANYONE SOLVE THIS I HAVE 30 MIN ONLY

4. Nova Company's total overhead cost at various levels of activity are presented below: Assume that the total overhead cost above consists of utilities, supervisory salaries, and maintenance. The breakdown of these May month's costs at the 60,000 machine-hour level of activity is: 1. Estimate how much of the $255,000 of overhead cost in July was maintenance cost. ( 5 marks) 2. Using the high-low method, estimate a cost formula for maintenance, and identify the maintenance cost for 120,000 machine hours ( 5 marks)