gabriel owns 27 fiction books and 23 non-fiction books. if 8 books fit on each shell,
how many shelves does he need for all of his books?
solve the problem and explain how the remainder affected your answer.
show your work.

He ! a group of farmers planned to clean 80 acres of wheat per day to finish the work on schedule. right before the work started, they received a new piece of machinery that them clean 10 more acres per day than originally planned. as a result of increased productivity in the last day before the deadline they only had to clean 30 acres. how many acres of wheat did the group of farmers have to clean?