Which context describes a difference of rational numbers?
A - finding the average of daily high temperatures
B - determining the coldest temperature in a month
C - recording the temperature hourly
D - comparing the daily high temperature and low temperature
D - comparing the daily high temperature and low temperature
A - finding the number of books remaining after a sale on books
Which scenario about books represents finding the difference?
A - finding the number of books remaining after a sale on books
B - finding the total number of books in a store when new books arrive
C - finding the location of a book in a store
D - finding the type of books in a store