Griffen Compary makes pipe using metal The compary uses a standard costang system: Yariable overhead is allocated on the basis of direct materat usage (pounds), Overhead is allocated to units based on expecred production of 12,100 units. Gaiflen maintains a materlal-irventory, so the amount of myterlat used is not necessarily the same as the amount of material purchased in amy one month. The standard cost shect for a unt of ploe follows Auguo thancial resuts show thet the wherage purchase price of metal was $630 per pound. The purchase price variance $34,689 Required: a. How thany pounds of metal were purchased in Augut? (Do not round intermediate calculations.) b. What was the ditect puter wal efliciency vartance in Aupust? (Do not round intermediate calculations, Indicate the effect of esch variance by selecting "Fi: for favoroble, or "W. for unfovorable. If there is no effect do nat select elther opt on.) c. How marvy poundi af peria Were used in aygus? (Do not reund intermediate calculations.)