Milken Inc. produces multi-colored lens for the astrological telescope industry. The planned production budget for the next few months is: July 5,500 lens, August 7,000, September 7,800, October 8,400. Each lens requires 2.2 hours of grinding labor (paid $15 per hour) and 2.3 hours of polishing labor (paid $22 per hour). How many total labor hours will be budgeted for September?

Multiple Choice

• 7,800

• 17,160

• 17,940

• 35,100