Sara's Systems manufactures audio systems for cars. Two models are produced: The Standard model has a budgeted price of $205 and a standard variable cost of $85. The Blaster model has a budgeted price of $485 and a standard variable cost of $165. At the beginning of the year, Sara estimated that she would sell 6,020 Blaster models and 24,080 Standard models. The actual results for the year showed that 7240 Blaster models were sold for total revenues of $3,475,200. A total of 25,900 Standard models were sold for revenues of $7.252,000 Required: a. Compute the activity variance for the year. b. Compute the mix and quantity variances for the year Complete this question by entering your answers in the tabs below. Required A Required B Compute the activity variance for the year. (Do not round Intermediate calculations. Indicate the effect of each variance by selecting "Ffor favorable, or "U" for unfavorable. If there is no effect, do not select either option) we Required B >