Answer:
First sencente is the correct one
Step-by-step explanation:
First we can find the total books and the average book per day for each grade:
7th grade: total of 6 + 6 + 7 + 11 + 5 = 35 books
average: 35 / 5 = 7 books per day
8th grade: total of 4 + 5 + 10 + 10 + 16 = 45 books
average: 45 / 5 = 9 books per day
First sencente: true, 8th grade has 9 books per day and 7th grade has 7 books per day
Second sentence: false, 8th grade has 45 books and 7th grade has 35 books
Third sentence: false, it is 6.
Fourth sentence: false, range for 7th grade is 5, range for 8th grade is 12
