Brick Inc uses the number of houses built as its measure of activity. During june, the company budgeted to build 25 houses, but its actual level of activity was 22 houses buit Material expenses a more cost of $20.600 per month plus $12.000 per house buit. Actual material expense for june was $286.500. The spending variance for material expense inne would be closest to 31.900 favorable B. 51,900 unfavorable 114,100 favorable 0.534100 unfavorable