Muscato Corporation estimates that its variable manufacturing overhead is $19.00 per machine-hour and its fixed manufacturing overhead is $1.442.100 per period. If the denominator ievel of activity is 7,500 machine-hours, the variable component in the predetermined overhead rate would be: Mutiple Chaice 5192.28 per machine-hout $19,00 per machne hour 521128 per machine-hout $20635 per machine hour