Responsibility statements could be made stronger if you use quantitative/qualitative statements in your resume

Quantitative/Qualitative Statements (Sample)

Performed sales work for auto parts chain store with annual sales exceeding $35 million

Recognized for impressive sales record and received awards for outstanding performance 

Generated more than 1,800 sales transactions totaling in excess of $12,000

Dealt tactfully and professionally with customer concerns

Exceeded sales quota by 100% (Improved sales to 200% of quota)

Managed  $50,000 in equipment and supervised crew of 10 counselors