Jack brought 10 bags of balloons to prank his friends by filling their rooms with balloons. since jack goes to charter school he gets out of school at 1: 15. and his friends are brothers that goes to public school. and his friends get out of school at 2: 30 but it takes 20 minutes for his friends to get to their house. and in each bag there is 10 balloons. and jack starts at 1: 20 and it takes him 10 mins for each bag. will he finish before they get out of school. answer and explain