Dawson Toys, Limited, produces a toy called the Maze. The company has recently created a standard cost system to help control costs and has established the following standards for the Maze toy: Direct materials: 7 microns per toy at $0.33 per micron Direct labor: 11 hours per toy at $6.90 per hour During July, the company produced 5,000 Maze toys. The toy's production data for the month are as follows: Direct materials 71,000 microns were purchased at a cost of $0.31 per micron. 27.250 of these microns were still in inventory at the end of the month. Direct labor 5,900 direct labor-hours were worked at a cost of $43,070. Required: 1. Compute the following variances for July: (Indicate the effect of each variance by selecting " F " for favorable, " U " for unfovorable, and "None" for no effect (i.e., zero varionce). Input all omounts as positive values. Do not round intermediate calculations. Round final answers to the nearest whole dollor omount.) a. The materials price and quantity variances. b. The labor rate and efficiency variances