Carla Eppelstein is saving her babysitting money to buy a bicycle. She usually babysits a total of 11 to 16 hours per week and charges $4.50 per hour. If the bicycle she wants is $147, in about how many weeks will she be able to pay for it

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?