Technical Engineering presently leases a copying machine on a monthly basis. The lease agreement requires a fixed fee each month in addition to a charge per copy. Technical Engineering made 2 400 copies and paid a total of $162 in rent in September and in October they paid $195 for 3 500 copies. Determine Technical Engineering's variable cost per copy.

Group of answer choices

$0.06

$0.04

$0.03

$0.01