The least number of books that could be in the box is 30. The number of books in the box could be any number that is a multiple of 30.
Answer:
26.88/7 = $3.84 per ounce
Step-by-step explanation:
13 red, 5 blue, 7 green...for a total of 25
percentage of green ones is : 7/25 = 0.28 = 28% <==
