The controller of Basic kneads Pizza has collected the following monthly expense data for use in analyzing the cost behavior of maintenance costs. Month January February March April May June Total Maintenance Costs $3,240 3,600 4,320 5,400 3,840 6,600 Total Machine Hours 360 420 600 828 480 840 Instructions 1. Determine the fixed- and variable-cost components using the high-low method. 2. Page 3 of 4 Prepare a graph showing the behavior of maintenance costs and identify the fixed- and variable- cost elements.