Answer:
A. $234,000 unfavorable
Step-by-step explanation:
Calculation to determine Armstrong's direct material price variance
Using this formula
Direct material price variance=[(Standard cost-Actual cost)*Actual quantity]
Let plug in the formula
Direct material price variance=[($11-$24)*18,000)
Direct material price variance=$13*18,000
Direct material price variance=$234,000 Unfavorable
Therefore Armstrong's direct material price variance is $234,000 Unfavorable