When data is quantitative, it is describing a numerical amount. For example, if the data was "the amount of houses on the street that have a garage," then the data would be quantitative since it is representing an amount (the amount of houses.) For data to be qualitative, it should be representing a quality of some kind. For example, a qualitative sample of data could be, "scents of perfumes in a store," or, "flavors of ice cream in a diner." Since our initial data is representing a quality and not a numerical amount, the data is qualitative!
There are 4 quarts in 1 gallon. You would multiply 4 qts x 9 gallons for a total of 36 quarts. He used 10 quarts and 3 gallons (12 quarts) leaving 14 quarts. There are 2 pints in every quart so you would multiply 2 x 14 for 28 quarts. I hope that helped!!!