Marion surveyed 55 girls and 25 boys and asked about their preferred sport. In all, 22 girls preferred soccer, and 7 boys preferred soccer. What is the conditional relative frequency that a student's favorite sport is not soccer given that the student is a boy?

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?