Answer:
$2.70 mixing; $4.40 sampling
Explanation:
Mixing:
Cost assigned to one unit = Rate machine hour for mixing * requires machine hours for each unit
Cost assigned to one unit = ($0.90 * 3 machine hours)
Cost assigned to one unit = $2.70
Sampling:
Cost assigned to one unit = Rate test for sampling department * tests requires per unit
Cost assigned to one unit = ($2.20 * 2 tests)
Cost assigned to one unit = $4.40