Ivanhoe Corporation manufactures a single product. Monthly production costs incurred in the manufacturing process are shown below for the production of 3,300 units. The utilities and maintenance costs are mixed costs. The fixed components of these costs are $420 and $280, respectively. Calculate unit variable cost, unit variable cost for utilities and unit variable cost for malntenance. Exclude mixed costs in the calculation for unit variable cost. (Round answers to 2 decimal places es. 2.25.) Variable cost per unit (exclude variable cost for utitities and maintenance) Variable cost per unit for utilities Varlable cost per unit for maintenance