Please need help with this question. Please answer all parts with explanation! Thanks in advance!

5 Problem In a slotted ring network, a fixed number of fixed-length slots circulate continuously on the ring. Each slot contains a leading bit to designate that the slot is empty or full. A station wishing to transmit waits until an empty slot arrives, marks the slot full, and inserts a frame of data as the slot goes by. The slot makes a complete round-trip, to be marked empty again by the station that marked it full. A station is said to be active if it has one or more frame to transmit. Consider a slotted ring network of length 10 Km with a date rate of 10 Mbps and 500 repeaters each of which introduces a 1-bit delay. There are 25 stations and each station also introduces a 1 bit delay. Each slot contains room for one source address byte, one destination address byte, two data bytes, and five control bits for a total of 37 bits. Assume that the propagation delay is 10 microseconds per kilometer. 1. How many slots can be there on the ring? 2. Let frame transfer time denote the time to transfer a frame to a destination station from the instant an empty slot arrives at an active source station. What is the average frame transfer time? 3. Let medium access time denote the time that an active station has to wait to obtain an empty slot. If p is the probability that a slot is empty, determine the average medium access time when p = 0.2