What is the name of the process that describes what happens when a customer is taken to a separate site to complete a transaction before being sent back to the original site again?

Jorge is attending college next year. he just got information on the college costs and the financial aid package the college is offering. jorge knows his parents can contribute $4,500 each year. jorge’s college costs & financial aid package per year costs financial aid package tuition & fees grants & scholarship $26,000 $18,500 room & board work-study $12,500 $8,500 how much will jorge need to pay each year from his own savings and from loans? $3,000 $7,000 $7,500 $11,500