You are given a math word problem and you are supposed to apply multiplication or division mathematical operators on the numbers embedded in the text to answer the following question and then only report the final numerical answer.

A new building needed 9 windows . The builder had already installed 6 of them . If it takes 6 hours to install each window , how long will it take him to install the rest ?
18

Rachel was unboxing some of her old winter clothes . She found 7 boxes of clothing and inside each box there were 3 scarves and 4 mittens . How many pieces of winter clothing did Rachel have total ?
49

A 12 ounce can of cranberry juice sells for 84 cents . What is the cost in cents per ounce .
7