Multiple Choice Question 67 Marigold Corp.'s high and low level of activity last year was 57000 units of product produced in May and 11000 units produced in November. Machine maintenance costs were $175600 in May and $46800 in November. Using the high-low method, determine an estimate of total maintenance cost for a month in which production is expected to be 40000 units. $159600 $124000 $128000 $147800