Let
y-------> number of books read during the month 
x------> number of picture of a book
we know that

in this problem
for 
calculate y

therefore
the answer is
The number of books read during the month
is 
Answer:
1/3 is the answer
Step-by-step explanation:
0.584 is greater than 0.58 !
800 = 8 x 10^2 in standard form
200 = 2 x 10^2 in standard form
Use the estimate but that should be more than the exact price