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

	June		July
Activity level in units	17,000		34,000
Variable cost	$ 57,800		$ ?
Fixed cost	25,500		?
Mixed cost	17,000		?
Total cost	$ 100,300		$ 210,000

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

$17,000

$68,900

$196,520

$83,300