Can someone help me solve this!

Japan Company produces lamps that require 3 standard hours per unit at an hourly rate of $19.10 per hour. Production of 6,300 units required 19,280 hours at an hourly rate of $18.50 per hour. Enter favorable variances as negative numbers. (a) Determine the direct labor rate variance. (b) Determine the direct labor time variance. (c) Determine the cost variance