Mckinney Solvents produces a wide variety products for the manufacturing industry. The standard mix for producing a single batch of 100 gallons of its biggest seling product is as follows: There is a standard 20 percent loss in liquid volume during processing due to evaporation. The finished liquid is put into io-gallon containers for sale. Thus, the standard material cost for a 10 -gallon container is $78750[=($7,875100 gallons ) - 10 gallons per container] The actiol quantitios of direct materials and the cost of the materials placed in production during March were os follows (maternis are purchased and used at the same time) A total of 5,190 containers ( 51,900 gallons) were produced during March Required: into: 0. and b. Materiais price and efficiency variances and materials mix and yield variances Note: Do not round intermediote colculations. Indicate the effect of eoch variance by selecting "F" for fovoroble, or " U " for unfovorable. If there is no effect, do not select either option