One day, Antonio left his school, the Aurora School for Learning Stuff, located at the point (-3, 2) and walked with his friends to the convienANTce store at (4, 2) to get some takis. After that, they walked to Amirrant's house at (4, 7) to hang out. Antonio got a text from his queen reminding him that he was supposed to larva sit for his little brothers and sisters, so he quickly walked back to school to wait for his ride. a) Exactly what distance did Antonio walk in this story? b) Using a calculator, find the decimal approximation of what distance he walked to the nearest thousandth of a unit.​