Dawson Toys, Ltd., produces a toy called the Maze. The company has recently established a standard cost system to help control costs and has established the following standards for the Maze toy: Direct materials: 6 microns per toy at $0.34 per micron Direct labor: 1.1 hours per toy at $6.50 per hour During July, the company produced 4,900 Maze toys. Production data for the month on the toy follow: Direct materials: 72,000 microns were purchased at a cost of $0.32 per micron. 35,250 of these microns were still in inventory at the end of the month. Direct labor: 5,690 direct labor-hours were worked at a cost of $40,399. Required: 1. Compute the following variances for July: (Do not round intermediate calculations. Round final answer to the nearest whole dollar. Indicate the effect of each variance by selecting " F " for favorable, " U " for unfavorable, and "None" for no effect (i.e., zero variance).) a. The materials price and quantity variances. b. The labor rate and efficiency variances