please provide the correct answer :-))

The following labor standards have been established for a particular product Standard labor hours per unit of output Standard labor rate 4.2 hours $17.90 per hour The following data pertain to operations concerning the product for the last months Actual hours worked Actual total labor cost Actual output 6,400 hours $ 115,20 1,400 units Required: .. What is the labor rate variance for the month? b. What is the labor efficiency variance for the month? Indicate the effect of each verlance by selecting "F" for favorable. "U" for unfavorable, and "None" for no effect fie.. zero variance). Input all amounts as positive values.) a. Labor Tate variance Labor efficiency variance