Cover job is indecent with the xo batial cap variable,
Answer:
Step-by-step explanation:
731² - 631² is the difference of squares.
731² - 631² = (731+631)(731-631) = 1362×100
therefore, 731² - 631² is divisible by 100
9 x 0.55 = 4.95, which can be rounded to the ones place.
5 books remain.
I believe the answer is D, I’m almost 100% positive this is correct
