Please answer all questions will give a GOOD rating!

14. (4 pts) Given a transmission speed of R bits/second, a packet size of B bytes, a propagation speed of Pmeters/second and a cable length of L meters, what size of packet will result in the last bit being transmitted just as the first bit of the packet arrives at the "far end" of the cable? 15. (4 pts) Calculate the queueing delay for a packet that arrives to a router that is currently transmitting a packet and has four other packets waiting to be transmitted. Packets are transmitted in the order they are received over a 2 Mbps link. The packet currently in transit is 60% complete and all packets are 1 KB in length. 16. (4 pts) Calculate the queueing delay when all packets are of length L, the transmission rate is R, X bits of the currently-being-transmitted packet have been transmitted, and n packets are already in the queue