Answer:
You need a photo or text to back that up, we can't solve this without an image or something that explains this problem.
Step-by-step explanation:
Answer:
f = 6
Step-by-step explanation:
f = 42/7 = 6
Y+6=(3/2)*x-6
-(3/2)x+y=-12
(3/2)x-y=12
3x-2y=24
I would answer, but you didn't give any options.
Step 1:
First, find the total number of students.
Let the total number of students = m
Step 2:
Find the total number of students using the percentage of 4 books.
48 students listed 4 books with a percentage of 16%

Hence, there are 300 students.
a)

72 students had 1 book.
b) What percentage more read 2 books than 4 books?
percentage that read 2 books = 36%
percentage that read 4 books = 16%
36 - 16 = 20%
There are 20% students that read 2 books than 4 books.