Fractional form: 63/10 or 6 3/10.
18/3.5=5.1 so you do 14/5.1=2.7
so your answer is 2.7 in
I would go with A, but I'm not positive.
52 weeks per year
250 times number of hours=number of items produced
number of hours=number of hours worked per week times number of weeks
number of hourse=40 times 52=2080 hours
250 times 2080=520000 items