ashleigh hires a group of security staff. each worker works an average of 80 hours per month at $14/hour. if…

ashleigh hires a group of security staff. each worker works an average of 80 hours per month at $14/hour. if her monthly labor cost for security workers is $23,520, how many security workers did ashleigh hire? 15 21 36 47
Answer
Answer:
B. 21
Explanation:
Step1: Calculate cost per worker
Cost per worker = $80\times14=$1120$
Step2: Find number of workers
Number of workers = $\frac{23520}{1120}=21$