Answer:
287 books
Step-by-step explanation
there was already 239 books. when the problem mentoins that Mary ADDS MORE books to the shelf, the operation is addition.
239+48=287
Answer: 0.075
Step-by-step explanation: when you are working with percentages to decimals you want to move the decimal two places to the left. If you are working with decimals and you want to make it a percentage you would move the decimal two places to the right.
The question ask to find the right answer on which of the label in your image where as a paper is cut out and then folded into rectangle prism and the answer would be that B is on the bottom and C is on the left side. I hope you are satisfied with my answer