Helmer's Rockers manufactures two models, Standard and Premium. Weekly demand is estimated to be 105 units of the Standard Model and 74 units of the Premium Model. The following per unit data apply Standard Premium Contribution margin per urdt $18 Number of machine-hour required 3 5 M there are 743 machine-hours available per week how many rockers of each model should im Helmer produce to mame profes? 105 units of Standard and 36 units of Premium 105 units of Standard and 74 units of Premium 82 units of Standard and 49 units of Premium 41 units of Standard and 74 units of Premium