Answer: 1. $690 (favorable)
2. Â $9045 (favorable)
Explanation: These can be computed as follows :-
Labor rate variance = Actual labor cost - (standard rate * actual hours)
                 =  $139,380 - ( $20.1 * 6900 hours )
                 = $690 (favorable)
.
Labor efficiency variance = ( Actual hours - standard hours ) * (standard rate )
                     = [6900 hours - (1500 units * 4.3 hours) ] * ($20.1)
                     = $9045 (favorable)