Pedal Harder produces two types of stationary bikes: regular and deluxe. Currently, the number of people exercising is such that Pedal Harder could use all available machine hours to produce either model. The two models are processed through the same production departments. Pedal Harder has a total of 590 machine hours available per month. Monthly fixed costs per month total $133,000. Data for both models is as follows: (Round your answers to two decimal places when needed and use rounded answers for all future calculations). 1. Calculate the Contribution Margin per machine hour. 2. Calculate the proportion of machine hours used. 3. Which bike type should be emphasized? 4. What will the company's operating income be