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3 1:49:57 Help Save & Exit Subn Ferry _Chemical uses a standard cost system to account for the costs of jts production of Chmical X. Standards are 1.4 gallons of materials at $105 per gallon and 10 hours of labor at a standard wage rate of $12. During September. Ferry Chemical produced 2,600 gallons of Chemical X. Ferry Chemical purchased and used 3,560 gallons of materials at a total cost of $380,920. Payroll totaled $302,617 for 25,430 hours worked. Required: a. Calculate the direct Mmaterials price variance. Note: Indicate the effect of variance by selecting "Favorable", "Unfavorable", or "None" for no effect (i.e., zero variance), b. Calculate the direct materials quantity variance. Note: Indicate the effect of variance by selecting "Favorable", "Unfavorable", or "None" for no effect (i.e., zero variance).) c. Calculate the direct labor rate variance. Note: Indicate the effect of variance by selecting "Favorable", "Unfavorable", or "None" for no effect (i.e., zero variance). d. Calculate the direct labor efficiency variance, Note: Indicate the effect of variance by selecting "Favorable\