James writes from 1 PM to 4 PM every night.  He can write 5 pages per hour.  How many weeks will it take to finish his 735-page book?
He writes for 4-1=<T>subtract(4, 1)=3 hours per day
That means he writes 3*5=<T>multiply(3, 5)=15 pages per day
So it would take him 735/15=<T>divide(735, 15)=49.0 days
That means it will take 49/7=<T>divide(49, 7)=7.0 weeks
