6..The following data pertains to activity and costs for two months:

	June		July
Activity level in units	24,000		48,000
Variable cost	$ 115,200		$ ?
Fixed cost	36,000		?
Mixed cost	24,000		?
Total cost	$ 175,200		$ 350,000

Assuming that these activity levels are within the relevant range, the mixed cost for July was:

$83,600

$24,000

$552,960

$151,200