We Got Gum Corporation sells chewing gum and during January they ran production machines for 29,000 hours total and incurred $11,500 in maintenance costs. During July they ran production machines for 16,000 hours total and incurred $6,700 in maintenance costs. Based on this data, what is the variable maintenance cost per machine hour? $2.23 per machine hour S0.42 per machine hour 50.58 per inachine hour $0.37 per machine hour