A school is selling tickets to a play. On the first day, the school sold 5 adult tickets and 10 student tickets for a total of $200. The school took in $105 on the second day by selling the price of an adult ticket?

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?