0.1 pts Stempel Corporation produces frisbees. Total manufacturing costs are $360,000 when 50,000 frisbees are produced. Of this amount, total variable costs are $140,000. What are the total production costs when 85,000 frisbees are produced? (Assume the same relevant range for both production levels.) O $598,000 $238,000 $458,000 O $612,000