Nathan usually drinks 37 ounces of water per day. He read that he should drink 57 ounces of water per day. If he starts drinking 57 ounces, what is the percent increase? Round to the nearest percent.

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?