Please, I need help with this question, please show work.

You are into the ISP business and you have a link with 6 Mbps that connects a residential area to your core network of routers. Suppose each user you are selling service requires 100 kbps when transmitting. Each user transmits only 5 percent of the time. 1) How many users can you support using circuit-switching? 2) (harder!) Suppose you consider moving to packet switching but you want to have uses uset internet with no delay and only in a small percentage of time you can accept a delay. If you have significant delays users will complain and will switch to another provider. Practically, you want delays to occur less than 1% of the time. What is the maximum number of users that you can sell your service? Show your calculations and explain your rationale.